body {
  background: #000;
  height: 100vh;
  overflow: hidden;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  font-family: 'Anton', sans-serif;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-perspective: 400px;
          perspective: 400px;
}

div {
  position: absolute;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  -webkit-backface-visibility: hidden;
          backface-visibility: hidden;
}

#window {
  width: 300px;
  height: 400px;
}
#window .panel_frame {
  top: -150px;
  left: -150px;
  width: 75px;
  height: 98px;
  border: 150px solid black;
  -webkit-box-sizing: content-box;
          box-sizing: content-box;
  -webkit-transform: translate3d(112.5px, 151px, 300px);
          transform: translate3d(112.5px, 151px, 300px);
  border-radius: 152px;
  -webkit-box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.3) inset;
          box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.3) inset;
}
#window .panel_back {
  width: 1000px;
  height: 1200px;
  background: linear-gradient(220deg, white 0%, #969696 100%);
  -webkit-transform: translate3d(-50%, -50%, -250px);
          transform: translate3d(-50%, -50%, -250px);
}
#window .pillar {
  width: 100px;
  height: 400px;
  background: linear-gradient(220deg, #f0f0f0 0%, #969696 100%);
  overflow: hidden;
}
#window .pillar .ref {
  left: 45%;
  width: 45%;
  height: 100%;
  background: -webkit-gradient(linear, left top, left bottom, from(rgba(255, 255, 255, 0.5)), to(rgba(255, 255, 255, 0.2)));
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.2) 100%);
  -webkit-transform: translateZ(1px);
          transform: translateZ(1px);
  -webkit-filter: blur(12px);
          filter: blur(12px);
  mix-blend-mode: screen;
}
#window .pillar::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: -webkit-gradient(linear, right top, left top, from(rgba(0, 0, 0, 0.15)), color-stop(10%, rgba(0, 0, 0, 0.1)), color-stop(50%, rgba(255, 255, 255, 0)));
  background: linear-gradient(270deg, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.1) 10%, rgba(255, 255, 255, 0) 50%);
}
#window .pillar::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(300deg, black 0%, rgba(0, 0, 0, 0) 31%);
}
#window .wall {
  width: 159px;
  height: 400px;
  background: linear-gradient(220deg, #f0f0f0 0%, #646464 100%);
  -webkit-transform: translate(100px, 256px);
          transform: translate(100px, 256px);
}
#window .wall::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: -webkit-gradient(linear, right top, left top, from(rgba(100, 100, 100, 0.1)), color-stop(5%, rgba(255, 255, 255, 0)));
  background: linear-gradient(270deg, rgba(100, 100, 100, 0.1) 0%, rgba(255, 255, 255, 0) 5%);
}
#window .step {
  -webkit-transform: rotateY(-50deg);
          transform: rotateY(-50deg);
}
#window .step_inner {
  -webkit-transform: translateX(99.4px);
          transform: translateX(99.4px);
}
#window .step_top {
  width: 150px;
  height: 37px;
  background: linear-gradient(220deg, #f0f0f0 0%, #969696 100%);
  -webkit-transform-origin: 0 100%;
          transform-origin: 0 100%;
  -webkit-transform: translateY(-37px) rotateX(90deg);
          transform: translateY(-37px) rotateX(90deg);
}
#window .step_top::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(-20deg, rgba(200, 200, 200, 0.4) 0%, rgba(100, 100, 100, 0.6) 100%);
  -webkit-clip-path: polygon(0 0, 100% 0, 92% 60%, 30% 100%, 0 100%);
          clip-path: polygon(0 0, 100% 0, 92% 60%, 30% 100%, 0 100%);
}
#window .step_top::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  opacity: 0;
  background: -webkit-gradient(linear, left top, right top, from(rgba(255, 255, 255, 0)), to(rgba(255, 255, 255, 0.2)));
  background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.2) 100%);
  -webkit-transform: translate3d(-100%, 0, -1px);
          transform: translate3d(-100%, 0, -1px);
}
#window .step_side {
  width: 150px;
  height: 20px;
  background: linear-gradient(195deg, #c8c8c8 0%, #646464 100%);
}
#window .step_side::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: white;
  opacity: 1;
  -webkit-transform: translateZ(1px);
          transform: translateZ(1px);
}
#window .step_side::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  opacity: 0;
  background: -webkit-gradient(linear, left top, right top, from(rgba(255, 255, 255, 0)), to(rgba(255, 255, 255, 0.2)));
  background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.2) 100%);
  -webkit-transform: translate3d(-100%, 0, -1px);
          transform: translate3d(-100%, 0, -1px);
}
#window .step:nth-child(1) {
  -webkit-animation: stepAnimation 10000ms -500ms linear infinite;
          animation: stepAnimation 10000ms -500ms linear infinite;
}
#window .step:nth-child(1) .step_side::before {
  -webkit-animation: stepColor 10000ms -500ms linear infinite;
          animation: stepColor 10000ms -500ms linear infinite;
}
#window .step:nth-child(1) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -500ms linear infinite;
          animation: stepRefrection 10000ms -500ms linear infinite;
}
#window .step:nth-child(1) .step_top::before {
  -webkit-animation: stepShadow 10000ms -500ms linear infinite;
          animation: stepShadow 10000ms -500ms linear infinite;
}
#window .step:nth-child(1) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -500ms linear infinite;
          animation: stepRefrection 10000ms -500ms linear infinite;
}
#window .step:nth-child(2) {
  -webkit-animation: stepAnimation 10000ms -1000ms linear infinite;
          animation: stepAnimation 10000ms -1000ms linear infinite;
}
#window .step:nth-child(2) .step_side::before {
  -webkit-animation: stepColor 10000ms -1000ms linear infinite;
          animation: stepColor 10000ms -1000ms linear infinite;
}
#window .step:nth-child(2) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -1000ms linear infinite;
          animation: stepRefrection 10000ms -1000ms linear infinite;
}
#window .step:nth-child(2) .step_top::before {
  -webkit-animation: stepShadow 10000ms -1000ms linear infinite;
          animation: stepShadow 10000ms -1000ms linear infinite;
}
#window .step:nth-child(2) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -1000ms linear infinite;
          animation: stepRefrection 10000ms -1000ms linear infinite;
}
#window .step:nth-child(3) {
  -webkit-animation: stepAnimation 10000ms -1500ms linear infinite;
          animation: stepAnimation 10000ms -1500ms linear infinite;
}
#window .step:nth-child(3) .step_side::before {
  -webkit-animation: stepColor 10000ms -1500ms linear infinite;
          animation: stepColor 10000ms -1500ms linear infinite;
}
#window .step:nth-child(3) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -1500ms linear infinite;
          animation: stepRefrection 10000ms -1500ms linear infinite;
}
#window .step:nth-child(3) .step_top::before {
  -webkit-animation: stepShadow 10000ms -1500ms linear infinite;
          animation: stepShadow 10000ms -1500ms linear infinite;
}
#window .step:nth-child(3) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -1500ms linear infinite;
          animation: stepRefrection 10000ms -1500ms linear infinite;
}
#window .step:nth-child(4) {
  -webkit-animation: stepAnimation 10000ms -2000ms linear infinite;
          animation: stepAnimation 10000ms -2000ms linear infinite;
}
#window .step:nth-child(4) .step_side::before {
  -webkit-animation: stepColor 10000ms -2000ms linear infinite;
          animation: stepColor 10000ms -2000ms linear infinite;
}
#window .step:nth-child(4) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -2000ms linear infinite;
          animation: stepRefrection 10000ms -2000ms linear infinite;
}
#window .step:nth-child(4) .step_top::before {
  -webkit-animation: stepShadow 10000ms -2000ms linear infinite;
          animation: stepShadow 10000ms -2000ms linear infinite;
}
#window .step:nth-child(4) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -2000ms linear infinite;
          animation: stepRefrection 10000ms -2000ms linear infinite;
}
#window .step:nth-child(5) {
  -webkit-animation: stepAnimation 10000ms -2500ms linear infinite;
          animation: stepAnimation 10000ms -2500ms linear infinite;
}
#window .step:nth-child(5) .step_side::before {
  -webkit-animation: stepColor 10000ms -2500ms linear infinite;
          animation: stepColor 10000ms -2500ms linear infinite;
}
#window .step:nth-child(5) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -2500ms linear infinite;
          animation: stepRefrection 10000ms -2500ms linear infinite;
}
#window .step:nth-child(5) .step_top::before {
  -webkit-animation: stepShadow 10000ms -2500ms linear infinite;
          animation: stepShadow 10000ms -2500ms linear infinite;
}
#window .step:nth-child(5) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -2500ms linear infinite;
          animation: stepRefrection 10000ms -2500ms linear infinite;
}
#window .step:nth-child(6) {
  -webkit-animation: stepAnimation 10000ms -3000ms linear infinite;
          animation: stepAnimation 10000ms -3000ms linear infinite;
}
#window .step:nth-child(6) .step_side::before {
  -webkit-animation: stepColor 10000ms -3000ms linear infinite;
          animation: stepColor 10000ms -3000ms linear infinite;
}
#window .step:nth-child(6) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -3000ms linear infinite;
          animation: stepRefrection 10000ms -3000ms linear infinite;
}
#window .step:nth-child(6) .step_top::before {
  -webkit-animation: stepShadow 10000ms -3000ms linear infinite;
          animation: stepShadow 10000ms -3000ms linear infinite;
}
#window .step:nth-child(6) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -3000ms linear infinite;
          animation: stepRefrection 10000ms -3000ms linear infinite;
}
#window .step:nth-child(7) {
  -webkit-animation: stepAnimation 10000ms -3500ms linear infinite;
          animation: stepAnimation 10000ms -3500ms linear infinite;
}
#window .step:nth-child(7) .step_side::before {
  -webkit-animation: stepColor 10000ms -3500ms linear infinite;
          animation: stepColor 10000ms -3500ms linear infinite;
}
#window .step:nth-child(7) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -3500ms linear infinite;
          animation: stepRefrection 10000ms -3500ms linear infinite;
}
#window .step:nth-child(7) .step_top::before {
  -webkit-animation: stepShadow 10000ms -3500ms linear infinite;
          animation: stepShadow 10000ms -3500ms linear infinite;
}
#window .step:nth-child(7) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -3500ms linear infinite;
          animation: stepRefrection 10000ms -3500ms linear infinite;
}
#window .step:nth-child(8) {
  -webkit-animation: stepAnimation 10000ms -4000ms linear infinite;
          animation: stepAnimation 10000ms -4000ms linear infinite;
}
#window .step:nth-child(8) .step_side::before {
  -webkit-animation: stepColor 10000ms -4000ms linear infinite;
          animation: stepColor 10000ms -4000ms linear infinite;
}
#window .step:nth-child(8) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -4000ms linear infinite;
          animation: stepRefrection 10000ms -4000ms linear infinite;
}
#window .step:nth-child(8) .step_top::before {
  -webkit-animation: stepShadow 10000ms -4000ms linear infinite;
          animation: stepShadow 10000ms -4000ms linear infinite;
}
#window .step:nth-child(8) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -4000ms linear infinite;
          animation: stepRefrection 10000ms -4000ms linear infinite;
}
#window .step:nth-child(9) {
  -webkit-animation: stepAnimation 10000ms -4500ms linear infinite;
          animation: stepAnimation 10000ms -4500ms linear infinite;
}
#window .step:nth-child(9) .step_side::before {
  -webkit-animation: stepColor 10000ms -4500ms linear infinite;
          animation: stepColor 10000ms -4500ms linear infinite;
}
#window .step:nth-child(9) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -4500ms linear infinite;
          animation: stepRefrection 10000ms -4500ms linear infinite;
}
#window .step:nth-child(9) .step_top::before {
  -webkit-animation: stepShadow 10000ms -4500ms linear infinite;
          animation: stepShadow 10000ms -4500ms linear infinite;
}
#window .step:nth-child(9) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -4500ms linear infinite;
          animation: stepRefrection 10000ms -4500ms linear infinite;
}
#window .step:nth-child(10) {
  -webkit-animation: stepAnimation 10000ms -5000ms linear infinite;
          animation: stepAnimation 10000ms -5000ms linear infinite;
}
#window .step:nth-child(10) .step_side::before {
  -webkit-animation: stepColor 10000ms -5000ms linear infinite;
          animation: stepColor 10000ms -5000ms linear infinite;
}
#window .step:nth-child(10) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -5000ms linear infinite;
          animation: stepRefrection 10000ms -5000ms linear infinite;
}
#window .step:nth-child(10) .step_top::before {
  -webkit-animation: stepShadow 10000ms -5000ms linear infinite;
          animation: stepShadow 10000ms -5000ms linear infinite;
}
#window .step:nth-child(10) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -5000ms linear infinite;
          animation: stepRefrection 10000ms -5000ms linear infinite;
}
#window .step:nth-child(11) {
  -webkit-animation: stepAnimation 10000ms -5500ms linear infinite;
          animation: stepAnimation 10000ms -5500ms linear infinite;
}
#window .step:nth-child(11) .step_side::before {
  -webkit-animation: stepColor 10000ms -5500ms linear infinite;
          animation: stepColor 10000ms -5500ms linear infinite;
}
#window .step:nth-child(11) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -5500ms linear infinite;
          animation: stepRefrection 10000ms -5500ms linear infinite;
}
#window .step:nth-child(11) .step_top::before {
  -webkit-animation: stepShadow 10000ms -5500ms linear infinite;
          animation: stepShadow 10000ms -5500ms linear infinite;
}
#window .step:nth-child(11) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -5500ms linear infinite;
          animation: stepRefrection 10000ms -5500ms linear infinite;
}
#window .step:nth-child(12) {
  -webkit-animation: stepAnimation 10000ms -6000ms linear infinite;
          animation: stepAnimation 10000ms -6000ms linear infinite;
}
#window .step:nth-child(12) .step_side::before {
  -webkit-animation: stepColor 10000ms -6000ms linear infinite;
          animation: stepColor 10000ms -6000ms linear infinite;
}
#window .step:nth-child(12) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -6000ms linear infinite;
          animation: stepRefrection 10000ms -6000ms linear infinite;
}
#window .step:nth-child(12) .step_top::before {
  -webkit-animation: stepShadow 10000ms -6000ms linear infinite;
          animation: stepShadow 10000ms -6000ms linear infinite;
}
#window .step:nth-child(12) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -6000ms linear infinite;
          animation: stepRefrection 10000ms -6000ms linear infinite;
}
#window .step:nth-child(13) {
  -webkit-animation: stepAnimation 10000ms -6500ms linear infinite;
          animation: stepAnimation 10000ms -6500ms linear infinite;
}
#window .step:nth-child(13) .step_side::before {
  -webkit-animation: stepColor 10000ms -6500ms linear infinite;
          animation: stepColor 10000ms -6500ms linear infinite;
}
#window .step:nth-child(13) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -6500ms linear infinite;
          animation: stepRefrection 10000ms -6500ms linear infinite;
}
#window .step:nth-child(13) .step_top::before {
  -webkit-animation: stepShadow 10000ms -6500ms linear infinite;
          animation: stepShadow 10000ms -6500ms linear infinite;
}
#window .step:nth-child(13) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -6500ms linear infinite;
          animation: stepRefrection 10000ms -6500ms linear infinite;
}
#window .step:nth-child(14) {
  -webkit-animation: stepAnimation 10000ms -7000ms linear infinite;
          animation: stepAnimation 10000ms -7000ms linear infinite;
}
#window .step:nth-child(14) .step_side::before {
  -webkit-animation: stepColor 10000ms -7000ms linear infinite;
          animation: stepColor 10000ms -7000ms linear infinite;
}
#window .step:nth-child(14) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -7000ms linear infinite;
          animation: stepRefrection 10000ms -7000ms linear infinite;
}
#window .step:nth-child(14) .step_top::before {
  -webkit-animation: stepShadow 10000ms -7000ms linear infinite;
          animation: stepShadow 10000ms -7000ms linear infinite;
}
#window .step:nth-child(14) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -7000ms linear infinite;
          animation: stepRefrection 10000ms -7000ms linear infinite;
}
#window .step:nth-child(15) {
  -webkit-animation: stepAnimation 10000ms -7500ms linear infinite;
          animation: stepAnimation 10000ms -7500ms linear infinite;
}
#window .step:nth-child(15) .step_side::before {
  -webkit-animation: stepColor 10000ms -7500ms linear infinite;
          animation: stepColor 10000ms -7500ms linear infinite;
}
#window .step:nth-child(15) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -7500ms linear infinite;
          animation: stepRefrection 10000ms -7500ms linear infinite;
}
#window .step:nth-child(15) .step_top::before {
  -webkit-animation: stepShadow 10000ms -7500ms linear infinite;
          animation: stepShadow 10000ms -7500ms linear infinite;
}
#window .step:nth-child(15) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -7500ms linear infinite;
          animation: stepRefrection 10000ms -7500ms linear infinite;
}
#window .step:nth-child(16) {
  -webkit-animation: stepAnimation 10000ms -8000ms linear infinite;
          animation: stepAnimation 10000ms -8000ms linear infinite;
}
#window .step:nth-child(16) .step_side::before {
  -webkit-animation: stepColor 10000ms -8000ms linear infinite;
          animation: stepColor 10000ms -8000ms linear infinite;
}
#window .step:nth-child(16) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -8000ms linear infinite;
          animation: stepRefrection 10000ms -8000ms linear infinite;
}
#window .step:nth-child(16) .step_top::before {
  -webkit-animation: stepShadow 10000ms -8000ms linear infinite;
          animation: stepShadow 10000ms -8000ms linear infinite;
}
#window .step:nth-child(16) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -8000ms linear infinite;
          animation: stepRefrection 10000ms -8000ms linear infinite;
}
#window .step:nth-child(17) {
  -webkit-animation: stepAnimation 10000ms -8500ms linear infinite;
          animation: stepAnimation 10000ms -8500ms linear infinite;
}
#window .step:nth-child(17) .step_side::before {
  -webkit-animation: stepColor 10000ms -8500ms linear infinite;
          animation: stepColor 10000ms -8500ms linear infinite;
}
#window .step:nth-child(17) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -8500ms linear infinite;
          animation: stepRefrection 10000ms -8500ms linear infinite;
}
#window .step:nth-child(17) .step_top::before {
  -webkit-animation: stepShadow 10000ms -8500ms linear infinite;
          animation: stepShadow 10000ms -8500ms linear infinite;
}
#window .step:nth-child(17) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -8500ms linear infinite;
          animation: stepRefrection 10000ms -8500ms linear infinite;
}
#window .step:nth-child(18) {
  -webkit-animation: stepAnimation 10000ms -9000ms linear infinite;
          animation: stepAnimation 10000ms -9000ms linear infinite;
}
#window .step:nth-child(18) .step_side::before {
  -webkit-animation: stepColor 10000ms -9000ms linear infinite;
          animation: stepColor 10000ms -9000ms linear infinite;
}
#window .step:nth-child(18) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -9000ms linear infinite;
          animation: stepRefrection 10000ms -9000ms linear infinite;
}
#window .step:nth-child(18) .step_top::before {
  -webkit-animation: stepShadow 10000ms -9000ms linear infinite;
          animation: stepShadow 10000ms -9000ms linear infinite;
}
#window .step:nth-child(18) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -9000ms linear infinite;
          animation: stepRefrection 10000ms -9000ms linear infinite;
}
#window .step:nth-child(19) {
  -webkit-animation: stepAnimation 10000ms -9500ms linear infinite;
          animation: stepAnimation 10000ms -9500ms linear infinite;
}
#window .step:nth-child(19) .step_side::before {
  -webkit-animation: stepColor 10000ms -9500ms linear infinite;
          animation: stepColor 10000ms -9500ms linear infinite;
}
#window .step:nth-child(19) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -9500ms linear infinite;
          animation: stepRefrection 10000ms -9500ms linear infinite;
}
#window .step:nth-child(19) .step_top::before {
  -webkit-animation: stepShadow 10000ms -9500ms linear infinite;
          animation: stepShadow 10000ms -9500ms linear infinite;
}
#window .step:nth-child(19) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -9500ms linear infinite;
          animation: stepRefrection 10000ms -9500ms linear infinite;
}
#window .step:nth-child(20) {
  -webkit-animation: stepAnimation 10000ms -10000ms linear infinite;
          animation: stepAnimation 10000ms -10000ms linear infinite;
}
#window .step:nth-child(20) .step_side::before {
  -webkit-animation: stepColor 10000ms -10000ms linear infinite;
          animation: stepColor 10000ms -10000ms linear infinite;
}
#window .step:nth-child(20) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -10000ms linear infinite;
          animation: stepRefrection 10000ms -10000ms linear infinite;
}
#window .step:nth-child(20) .step_top::before {
  -webkit-animation: stepShadow 10000ms -10000ms linear infinite;
          animation: stepShadow 10000ms -10000ms linear infinite;
}
#window .step:nth-child(20) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -10000ms linear infinite;
          animation: stepRefrection 10000ms -10000ms linear infinite;
}
#window .step:nth-child(21) {
  -webkit-animation: stepAnimation 10000ms -10500ms linear infinite;
          animation: stepAnimation 10000ms -10500ms linear infinite;
}
#window .step:nth-child(21) .step_side::before {
  -webkit-animation: stepColor 10000ms -10500ms linear infinite;
          animation: stepColor 10000ms -10500ms linear infinite;
}
#window .step:nth-child(21) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -10500ms linear infinite;
          animation: stepRefrection 10000ms -10500ms linear infinite;
}
#window .step:nth-child(21) .step_top::before {
  -webkit-animation: stepShadow 10000ms -10500ms linear infinite;
          animation: stepShadow 10000ms -10500ms linear infinite;
}
#window .step:nth-child(21) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -10500ms linear infinite;
          animation: stepRefrection 10000ms -10500ms linear infinite;
}
#window .step:nth-child(22) {
  -webkit-animation: stepAnimation 10000ms -11000ms linear infinite;
          animation: stepAnimation 10000ms -11000ms linear infinite;
}
#window .step:nth-child(22) .step_side::before {
  -webkit-animation: stepColor 10000ms -11000ms linear infinite;
          animation: stepColor 10000ms -11000ms linear infinite;
}
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          animation: stepAnimation 10000ms -39000ms linear infinite;
}
#window .step:nth-child(78) .step_side::before {
  -webkit-animation: stepColor 10000ms -39000ms linear infinite;
          animation: stepColor 10000ms -39000ms linear infinite;
}
#window .step:nth-child(78) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -39000ms linear infinite;
          animation: stepRefrection 10000ms -39000ms linear infinite;
}
#window .step:nth-child(78) .step_top::before {
  -webkit-animation: stepShadow 10000ms -39000ms linear infinite;
          animation: stepShadow 10000ms -39000ms linear infinite;
}
#window .step:nth-child(78) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -39000ms linear infinite;
          animation: stepRefrection 10000ms -39000ms linear infinite;
}
#window .step:nth-child(79) {
  -webkit-animation: stepAnimation 10000ms -39500ms linear infinite;
          animation: stepAnimation 10000ms -39500ms linear infinite;
}
#window .step:nth-child(79) .step_side::before {
  -webkit-animation: stepColor 10000ms -39500ms linear infinite;
          animation: stepColor 10000ms -39500ms linear infinite;
}
#window .step:nth-child(79) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -39500ms linear infinite;
          animation: stepRefrection 10000ms -39500ms linear infinite;
}
#window .step:nth-child(79) .step_top::before {
  -webkit-animation: stepShadow 10000ms -39500ms linear infinite;
          animation: stepShadow 10000ms -39500ms linear infinite;
}
#window .step:nth-child(79) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -39500ms linear infinite;
          animation: stepRefrection 10000ms -39500ms linear infinite;
}
#window .step:nth-child(80) {
  -webkit-animation: stepAnimation 10000ms -40000ms linear infinite;
          animation: stepAnimation 10000ms -40000ms linear infinite;
}
#window .step:nth-child(80) .step_side::before {
  -webkit-animation: stepColor 10000ms -40000ms linear infinite;
          animation: stepColor 10000ms -40000ms linear infinite;
}
#window .step:nth-child(80) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -40000ms linear infinite;
          animation: stepRefrection 10000ms -40000ms linear infinite;
}
#window .step:nth-child(80) .step_top::before {
  -webkit-animation: stepShadow 10000ms -40000ms linear infinite;
          animation: stepShadow 10000ms -40000ms linear infinite;
}
#window .step:nth-child(80) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -40000ms linear infinite;
          animation: stepRefrection 10000ms -40000ms linear infinite;
}
#window .step:nth-child(81) {
  -webkit-animation: stepAnimation 10000ms -40500ms linear infinite;
          animation: stepAnimation 10000ms -40500ms linear infinite;
}
#window .step:nth-child(81) .step_side::before {
  -webkit-animation: stepColor 10000ms -40500ms linear infinite;
          animation: stepColor 10000ms -40500ms linear infinite;
}
#window .step:nth-child(81) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -40500ms linear infinite;
          animation: stepRefrection 10000ms -40500ms linear infinite;
}
#window .step:nth-child(81) .step_top::before {
  -webkit-animation: stepShadow 10000ms -40500ms linear infinite;
          animation: stepShadow 10000ms -40500ms linear infinite;
}
#window .step:nth-child(81) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -40500ms linear infinite;
          animation: stepRefrection 10000ms -40500ms linear infinite;
}
#window .step:nth-child(82) {
  -webkit-animation: stepAnimation 10000ms -41000ms linear infinite;
          animation: stepAnimation 10000ms -41000ms linear infinite;
}
#window .step:nth-child(82) .step_side::before {
  -webkit-animation: stepColor 10000ms -41000ms linear infinite;
          animation: stepColor 10000ms -41000ms linear infinite;
}
#window .step:nth-child(82) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -41000ms linear infinite;
          animation: stepRefrection 10000ms -41000ms linear infinite;
}
#window .step:nth-child(82) .step_top::before {
  -webkit-animation: stepShadow 10000ms -41000ms linear infinite;
          animation: stepShadow 10000ms -41000ms linear infinite;
}
#window .step:nth-child(82) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -41000ms linear infinite;
          animation: stepRefrection 10000ms -41000ms linear infinite;
}
#window .step:nth-child(83) {
  -webkit-animation: stepAnimation 10000ms -41500ms linear infinite;
          animation: stepAnimation 10000ms -41500ms linear infinite;
}
#window .step:nth-child(83) .step_side::before {
  -webkit-animation: stepColor 10000ms -41500ms linear infinite;
          animation: stepColor 10000ms -41500ms linear infinite;
}
#window .step:nth-child(83) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -41500ms linear infinite;
          animation: stepRefrection 10000ms -41500ms linear infinite;
}
#window .step:nth-child(83) .step_top::before {
  -webkit-animation: stepShadow 10000ms -41500ms linear infinite;
          animation: stepShadow 10000ms -41500ms linear infinite;
}
#window .step:nth-child(83) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -41500ms linear infinite;
          animation: stepRefrection 10000ms -41500ms linear infinite;
}
#window .step:nth-child(84) {
  -webkit-animation: stepAnimation 10000ms -42000ms linear infinite;
          animation: stepAnimation 10000ms -42000ms linear infinite;
}
#window .step:nth-child(84) .step_side::before {
  -webkit-animation: stepColor 10000ms -42000ms linear infinite;
          animation: stepColor 10000ms -42000ms linear infinite;
}
#window .step:nth-child(84) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -42000ms linear infinite;
          animation: stepRefrection 10000ms -42000ms linear infinite;
}
#window .step:nth-child(84) .step_top::before {
  -webkit-animation: stepShadow 10000ms -42000ms linear infinite;
          animation: stepShadow 10000ms -42000ms linear infinite;
}
#window .step:nth-child(84) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -42000ms linear infinite;
          animation: stepRefrection 10000ms -42000ms linear infinite;
}
#window .step:nth-child(85) {
  -webkit-animation: stepAnimation 10000ms -42500ms linear infinite;
          animation: stepAnimation 10000ms -42500ms linear infinite;
}
#window .step:nth-child(85) .step_side::before {
  -webkit-animation: stepColor 10000ms -42500ms linear infinite;
          animation: stepColor 10000ms -42500ms linear infinite;
}
#window .step:nth-child(85) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -42500ms linear infinite;
          animation: stepRefrection 10000ms -42500ms linear infinite;
}
#window .step:nth-child(85) .step_top::before {
  -webkit-animation: stepShadow 10000ms -42500ms linear infinite;
          animation: stepShadow 10000ms -42500ms linear infinite;
}
#window .step:nth-child(85) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -42500ms linear infinite;
          animation: stepRefrection 10000ms -42500ms linear infinite;
}
#window .step:nth-child(86) {
  -webkit-animation: stepAnimation 10000ms -43000ms linear infinite;
          animation: stepAnimation 10000ms -43000ms linear infinite;
}
#window .step:nth-child(86) .step_side::before {
  -webkit-animation: stepColor 10000ms -43000ms linear infinite;
          animation: stepColor 10000ms -43000ms linear infinite;
}
#window .step:nth-child(86) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -43000ms linear infinite;
          animation: stepRefrection 10000ms -43000ms linear infinite;
}
#window .step:nth-child(86) .step_top::before {
  -webkit-animation: stepShadow 10000ms -43000ms linear infinite;
          animation: stepShadow 10000ms -43000ms linear infinite;
}
#window .step:nth-child(86) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -43000ms linear infinite;
          animation: stepRefrection 10000ms -43000ms linear infinite;
}
#window .step:nth-child(87) {
  -webkit-animation: stepAnimation 10000ms -43500ms linear infinite;
          animation: stepAnimation 10000ms -43500ms linear infinite;
}
#window .step:nth-child(87) .step_side::before {
  -webkit-animation: stepColor 10000ms -43500ms linear infinite;
          animation: stepColor 10000ms -43500ms linear infinite;
}
#window .step:nth-child(87) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -43500ms linear infinite;
          animation: stepRefrection 10000ms -43500ms linear infinite;
}
#window .step:nth-child(87) .step_top::before {
  -webkit-animation: stepShadow 10000ms -43500ms linear infinite;
          animation: stepShadow 10000ms -43500ms linear infinite;
}
#window .step:nth-child(87) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -43500ms linear infinite;
          animation: stepRefrection 10000ms -43500ms linear infinite;
}
#window .step:nth-child(88) {
  -webkit-animation: stepAnimation 10000ms -44000ms linear infinite;
          animation: stepAnimation 10000ms -44000ms linear infinite;
}
#window .step:nth-child(88) .step_side::before {
  -webkit-animation: stepColor 10000ms -44000ms linear infinite;
          animation: stepColor 10000ms -44000ms linear infinite;
}
#window .step:nth-child(88) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -44000ms linear infinite;
          animation: stepRefrection 10000ms -44000ms linear infinite;
}
#window .step:nth-child(88) .step_top::before {
  -webkit-animation: stepShadow 10000ms -44000ms linear infinite;
          animation: stepShadow 10000ms -44000ms linear infinite;
}
#window .step:nth-child(88) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -44000ms linear infinite;
          animation: stepRefrection 10000ms -44000ms linear infinite;
}
#window .step:nth-child(89) {
  -webkit-animation: stepAnimation 10000ms -44500ms linear infinite;
          animation: stepAnimation 10000ms -44500ms linear infinite;
}
#window .step:nth-child(89) .step_side::before {
  -webkit-animation: stepColor 10000ms -44500ms linear infinite;
          animation: stepColor 10000ms -44500ms linear infinite;
}
#window .step:nth-child(89) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -44500ms linear infinite;
          animation: stepRefrection 10000ms -44500ms linear infinite;
}
#window .step:nth-child(89) .step_top::before {
  -webkit-animation: stepShadow 10000ms -44500ms linear infinite;
          animation: stepShadow 10000ms -44500ms linear infinite;
}
#window .step:nth-child(89) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -44500ms linear infinite;
          animation: stepRefrection 10000ms -44500ms linear infinite;
}
#window .step:nth-child(90) {
  -webkit-animation: stepAnimation 10000ms -45000ms linear infinite;
          animation: stepAnimation 10000ms -45000ms linear infinite;
}
#window .step:nth-child(90) .step_side::before {
  -webkit-animation: stepColor 10000ms -45000ms linear infinite;
          animation: stepColor 10000ms -45000ms linear infinite;
}
#window .step:nth-child(90) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -45000ms linear infinite;
          animation: stepRefrection 10000ms -45000ms linear infinite;
}
#window .step:nth-child(90) .step_top::before {
  -webkit-animation: stepShadow 10000ms -45000ms linear infinite;
          animation: stepShadow 10000ms -45000ms linear infinite;
}
#window .step:nth-child(90) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -45000ms linear infinite;
          animation: stepRefrection 10000ms -45000ms linear infinite;
}
#window .step:nth-child(91) {
  -webkit-animation: stepAnimation 10000ms -45500ms linear infinite;
          animation: stepAnimation 10000ms -45500ms linear infinite;
}
#window .step:nth-child(91) .step_side::before {
  -webkit-animation: stepColor 10000ms -45500ms linear infinite;
          animation: stepColor 10000ms -45500ms linear infinite;
}
#window .step:nth-child(91) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -45500ms linear infinite;
          animation: stepRefrection 10000ms -45500ms linear infinite;
}
#window .step:nth-child(91) .step_top::before {
  -webkit-animation: stepShadow 10000ms -45500ms linear infinite;
          animation: stepShadow 10000ms -45500ms linear infinite;
}
#window .step:nth-child(91) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -45500ms linear infinite;
          animation: stepRefrection 10000ms -45500ms linear infinite;
}
#window .step:nth-child(92) {
  -webkit-animation: stepAnimation 10000ms -46000ms linear infinite;
          animation: stepAnimation 10000ms -46000ms linear infinite;
}
#window .step:nth-child(92) .step_side::before {
  -webkit-animation: stepColor 10000ms -46000ms linear infinite;
          animation: stepColor 10000ms -46000ms linear infinite;
}
#window .step:nth-child(92) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -46000ms linear infinite;
          animation: stepRefrection 10000ms -46000ms linear infinite;
}
#window .step:nth-child(92) .step_top::before {
  -webkit-animation: stepShadow 10000ms -46000ms linear infinite;
          animation: stepShadow 10000ms -46000ms linear infinite;
}
#window .step:nth-child(92) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -46000ms linear infinite;
          animation: stepRefrection 10000ms -46000ms linear infinite;
}
#window .step:nth-child(93) {
  -webkit-animation: stepAnimation 10000ms -46500ms linear infinite;
          animation: stepAnimation 10000ms -46500ms linear infinite;
}
#window .step:nth-child(93) .step_side::before {
  -webkit-animation: stepColor 10000ms -46500ms linear infinite;
          animation: stepColor 10000ms -46500ms linear infinite;
}
#window .step:nth-child(93) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -46500ms linear infinite;
          animation: stepRefrection 10000ms -46500ms linear infinite;
}
#window .step:nth-child(93) .step_top::before {
  -webkit-animation: stepShadow 10000ms -46500ms linear infinite;
          animation: stepShadow 10000ms -46500ms linear infinite;
}
#window .step:nth-child(93) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -46500ms linear infinite;
          animation: stepRefrection 10000ms -46500ms linear infinite;
}
#window .step:nth-child(94) {
  -webkit-animation: stepAnimation 10000ms -47000ms linear infinite;
          animation: stepAnimation 10000ms -47000ms linear infinite;
}
#window .step:nth-child(94) .step_side::before {
  -webkit-animation: stepColor 10000ms -47000ms linear infinite;
          animation: stepColor 10000ms -47000ms linear infinite;
}
#window .step:nth-child(94) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -47000ms linear infinite;
          animation: stepRefrection 10000ms -47000ms linear infinite;
}
#window .step:nth-child(94) .step_top::before {
  -webkit-animation: stepShadow 10000ms -47000ms linear infinite;
          animation: stepShadow 10000ms -47000ms linear infinite;
}
#window .step:nth-child(94) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -47000ms linear infinite;
          animation: stepRefrection 10000ms -47000ms linear infinite;
}
#window .step:nth-child(95) {
  -webkit-animation: stepAnimation 10000ms -47500ms linear infinite;
          animation: stepAnimation 10000ms -47500ms linear infinite;
}
#window .step:nth-child(95) .step_side::before {
  -webkit-animation: stepColor 10000ms -47500ms linear infinite;
          animation: stepColor 10000ms -47500ms linear infinite;
}
#window .step:nth-child(95) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -47500ms linear infinite;
          animation: stepRefrection 10000ms -47500ms linear infinite;
}
#window .step:nth-child(95) .step_top::before {
  -webkit-animation: stepShadow 10000ms -47500ms linear infinite;
          animation: stepShadow 10000ms -47500ms linear infinite;
}
#window .step:nth-child(95) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -47500ms linear infinite;
          animation: stepRefrection 10000ms -47500ms linear infinite;
}
#window .step:nth-child(96) {
  -webkit-animation: stepAnimation 10000ms -48000ms linear infinite;
          animation: stepAnimation 10000ms -48000ms linear infinite;
}
#window .step:nth-child(96) .step_side::before {
  -webkit-animation: stepColor 10000ms -48000ms linear infinite;
          animation: stepColor 10000ms -48000ms linear infinite;
}
#window .step:nth-child(96) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -48000ms linear infinite;
          animation: stepRefrection 10000ms -48000ms linear infinite;
}
#window .step:nth-child(96) .step_top::before {
  -webkit-animation: stepShadow 10000ms -48000ms linear infinite;
          animation: stepShadow 10000ms -48000ms linear infinite;
}
#window .step:nth-child(96) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -48000ms linear infinite;
          animation: stepRefrection 10000ms -48000ms linear infinite;
}
#window .step:nth-child(97) {
  -webkit-animation: stepAnimation 10000ms -48500ms linear infinite;
          animation: stepAnimation 10000ms -48500ms linear infinite;
}
#window .step:nth-child(97) .step_side::before {
  -webkit-animation: stepColor 10000ms -48500ms linear infinite;
          animation: stepColor 10000ms -48500ms linear infinite;
}
#window .step:nth-child(97) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -48500ms linear infinite;
          animation: stepRefrection 10000ms -48500ms linear infinite;
}
#window .step:nth-child(97) .step_top::before {
  -webkit-animation: stepShadow 10000ms -48500ms linear infinite;
          animation: stepShadow 10000ms -48500ms linear infinite;
}
#window .step:nth-child(97) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -48500ms linear infinite;
          animation: stepRefrection 10000ms -48500ms linear infinite;
}
#window .step:nth-child(98) {
  -webkit-animation: stepAnimation 10000ms -49000ms linear infinite;
          animation: stepAnimation 10000ms -49000ms linear infinite;
}
#window .step:nth-child(98) .step_side::before {
  -webkit-animation: stepColor 10000ms -49000ms linear infinite;
          animation: stepColor 10000ms -49000ms linear infinite;
}
#window .step:nth-child(98) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -49000ms linear infinite;
          animation: stepRefrection 10000ms -49000ms linear infinite;
}
#window .step:nth-child(98) .step_top::before {
  -webkit-animation: stepShadow 10000ms -49000ms linear infinite;
          animation: stepShadow 10000ms -49000ms linear infinite;
}
#window .step:nth-child(98) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -49000ms linear infinite;
          animation: stepRefrection 10000ms -49000ms linear infinite;
}
#window .step:nth-child(99) {
  -webkit-animation: stepAnimation 10000ms -49500ms linear infinite;
          animation: stepAnimation 10000ms -49500ms linear infinite;
}
#window .step:nth-child(99) .step_side::before {
  -webkit-animation: stepColor 10000ms -49500ms linear infinite;
          animation: stepColor 10000ms -49500ms linear infinite;
}
#window .step:nth-child(99) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -49500ms linear infinite;
          animation: stepRefrection 10000ms -49500ms linear infinite;
}
#window .step:nth-child(99) .step_top::before {
  -webkit-animation: stepShadow 10000ms -49500ms linear infinite;
          animation: stepShadow 10000ms -49500ms linear infinite;
}
#window .step:nth-child(99) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -49500ms linear infinite;
          animation: stepRefrection 10000ms -49500ms linear infinite;
}
#window .step:nth-child(100) {
  -webkit-animation: stepAnimation 10000ms -50000ms linear infinite;
          animation: stepAnimation 10000ms -50000ms linear infinite;
}
#window .step:nth-child(100) .step_side::before {
  -webkit-animation: stepColor 10000ms -50000ms linear infinite;
          animation: stepColor 10000ms -50000ms linear infinite;
}
#window .step:nth-child(100) .step_side::after {
  -webkit-animation: stepRefrection 10000ms -50000ms linear infinite;
          animation: stepRefrection 10000ms -50000ms linear infinite;
}
#window .step:nth-child(100) .step_top::before {
  -webkit-animation: stepShadow 10000ms -50000ms linear infinite;
          animation: stepShadow 10000ms -50000ms linear infinite;
}
#window .step:nth-child(100) .step_top::after {
  -webkit-animation: stepRefrection 10000ms -50000ms linear infinite;
          animation: stepRefrection 10000ms -50000ms linear infinite;
}

@-webkit-keyframes stepAnimation {
  0% {
    -webkit-transform: translateY(0) rotateY(90deg);
            transform: translateY(0) rotateY(90deg);
  }
  100% {
    -webkit-transform: translateY(400px) rotateY(-90deg);
            transform: translateY(400px) rotateY(-90deg);
  }
}

@keyframes stepAnimation {
  0% {
    -webkit-transform: translateY(0) rotateY(90deg);
            transform: translateY(0) rotateY(90deg);
  }
  100% {
    -webkit-transform: translateY(400px) rotateY(-90deg);
            transform: translateY(400px) rotateY(-90deg);
  }
}
@-webkit-keyframes stepColor {
  0% {
    opacity: 1;
  }
  60% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@keyframes stepColor {
  0% {
    opacity: 1;
  }
  60% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@-webkit-keyframes stepRefrection {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes stepRefrection {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes stepShadow {
  0% {
    -webkit-clip-path: polygon(0 0, 100% 0, 0% 40%, 30% 100%, 0 100%);
            clip-path: polygon(0 0, 100% 0, 0% 40%, 30% 100%, 0 100%);
  }
  100% {
    -webkit-clip-path: polygon(0 0, 100% 0, 125% 80%, 60% 100%, 0 100%);
            clip-path: polygon(0 0, 100% 0, 125% 80%, 60% 100%, 0 100%);
  }
}
@keyframes stepShadow {
  0% {
    -webkit-clip-path: polygon(0 0, 100% 0, 0% 40%, 30% 100%, 0 100%);
            clip-path: polygon(0 0, 100% 0, 0% 40%, 30% 100%, 0 100%);
  }
  100% {
    -webkit-clip-path: polygon(0 0, 100% 0, 125% 80%, 60% 100%, 0 100%);
            clip-path: polygon(0 0, 100% 0, 125% 80%, 60% 100%, 0 100%);
  }
}