.clearfix {
  zoom: 1;
}
.clearfix:before, .clearfix:after {
  content: "";
  display: table;
}
.clearfix:after {
  clear: both;
}

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  box-sizing: border-box;
}

body {
  background: #1d1d1f;
  font-family: 'lato', helvetica, arial, sans-serif;
  color: white;
}

#wrapper {
  display: block;
  width: 90%;
  margin: 50px auto;
}

.slider-outer {
  display: block;
  width: 100%;
  height: 250px;
  position: relative;
  -webkit-perspective: 1600px;
  -moz-perspective: 1600px;
  -o-perspective: 1600px;
  -ms-perspective: 1600px;
}
.slider-outer .slider-inner {
  display: block;
  width: 100%;
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  -o-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  -webkit-transition: all 0.3s linear;
  -moz-transition: all 0.3s linear;
  -o-transition: all 0.3s linear;
  -ms-transition: all 0.3s linear;
  -webkit-transform-origin: 50% 100%;
  -moz-transform-origin: 50% 100%;
  -o-transform-origin: 50% 100%;
  -ms-transform-origin: 50% 100%;
}
.slider-outer .slider-inner.rotate.two {
  -webkit-transform: rotateX(-90deg) translateZ(250px);
  -moz-transform: rotateX(-90deg) translateZ(250px);
  -o-transform: rotateX(-90deg) translateZ(250px);
  -ms-transform: rotateX(-90deg) translateZ(250px);
}
.slider-outer .slider-inner.rotate.three {
  -webkit-transform: rotateX(-180deg) translateY(-250px) translateZ(250px);
  -moz-transform: rotateX(-180deg) translateY(-250px) translateZ(250px);
  -o-transform: rotateX(-180deg) translateY(-250px) translateZ(250px);
  -ms-transform: rotateX(-180deg) translateY(-250px) translateZ(250px);
}
.slider-outer .slider-inner.rotate.four {
  -webkit-transform: rotateX(-270deg) translateY(-250px);
  -moz-transform: rotateX(-270deg) translateY(-250px);
  -o-transform: rotateX(-270deg) translateY(-250px);
  -ms-transform: rotateX(-270deg) translateY(-250px);
}
.slider-outer .slide {
  display: block;
  width: 100%;
  height: 250px;
  position: absolute;
  background: white;
  background-color: #ededed;
  background-image: -webkit-gradient(linear, left top, left bottom, from(white), to(#ededed));
  background-image: -webkit-linear-gradient(top, white, #ededed);
  background-image: -moz-linear-gradient(top, white, #ededed);
  background-image: -o-linear-gradient(top, white, #ededed);
  background-image: linear-gradient(to bottom, white, #ededed);
  padding: 27px;
  color: #4ecdc4;
  overflow: hidden;
  -webkit-transform-origin: 0% 0%;
  -moz-transform-origin: 0% 0%;
  -o-transform-origin: 0% 0%;
  -ms-transform-origin: 0% 0%;
}
.slider-outer .slide .slide-title {
  display: block;
  position: relative;
  font-size: 70px;
  font-weight: 100;
  z-index: 12;
}
.slider-outer .slide i {
  display: block;
  position: absolute;
  top: 10px;
  right: -10px;
  font-size: 300px;
  color: #c7f464;
  z-index: 11;
  text-shadow: 1px 2px 1px rgba(0, 0, 0, 0.1);
}
.slider-outer .slide.top {
  background: #556270;
  background-color: #46505c;
  background-image: -webkit-gradient(linear, left top, left bottom, from(#556270), to(#46505c));
  background-image: -webkit-linear-gradient(top, #556270, #46505c);
  background-image: -moz-linear-gradient(top, #556270, #46505c);
  background-image: -o-linear-gradient(top, #556270, #46505c);
  background-image: linear-gradient(to bottom, #556270, #46505c);
  -webkit-transform: rotateX(90deg) translateY(-250px);
  -moz-transform: rotateX(90deg) translateY(-250px);
  -o-transform: rotateX(90deg) translateY(-250px);
  -ms-transform: rotateX(90deg) translateY(-250px);
}
.slider-outer .slide.back {
  background: #ff6b6b;
  color: white;
  background-color: #ff4747;
  background-image: -webkit-gradient(linear, left top, left bottom, from(#ff6b6b), to(#ff4747));
  background-image: -webkit-linear-gradient(top, #ff6b6b, #ff4747);
  background-image: -moz-linear-gradient(top, #ff6b6b, #ff4747);
  background-image: -o-linear-gradient(top, #ff6b6b, #ff4747);
  background-image: linear-gradient(to bottom, #ff6b6b, #ff4747);
  -webkit-transform: rotateX(180deg) translateY(-250px) translateZ(250px);
  -moz-transform: rotateX(180deg) translateY(-250px) translateZ(250px);
  -o-transform: rotateX(180deg) translateY(-250px) translateZ(250px);
  -ms-transform: rotateX(180deg) translateY(-250px) translateZ(250px);
}
.slider-outer .slide.bottom {
  background: #4ecdc4;
  background-color: #36c1b7;
  background-image: -webkit-gradient(linear, left top, left bottom, from(#4ecdc4), to(#36c1b7));
  background-image: -webkit-linear-gradient(top, #4ecdc4, #36c1b7);
  background-image: -moz-linear-gradient(top, #4ecdc4, #36c1b7);
  background-image: -o-linear-gradient(top, #4ecdc4, #36c1b7);
  background-image: linear-gradient(to bottom, #4ecdc4, #36c1b7);
  color: white;
  -webkit-transform: rotateX(-90deg) translateZ(250px);
  -moz-transform: rotateX(-90deg) translateZ(250px);
  -o-transform: rotateX(-90deg) translateZ(250px);
  -ms-transform: rotateX(-90deg) translateZ(250px);
}

#nav {
  display: block;
  position: relative;
  width: 100%;
  margin-top: 27px;
  z-index: 10;
}
#nav ul {
  display: block;
  padding: 0;
  margin: 0 0 0;
  list-style: none;
  width: 190px;
  margin: 0 auto;
  text-align: left;
}
#nav ul li {
  display: block;
  float: left;
  margin-right: 10px;
  font-size: 18px;
}
#nav ul li:nth-of-type(4) {
  margin-right: 0;
}
#nav ul li a.btn {
  display: block;
  width: 40px;
  height: 40px;
  color: white;
  border: 3px solid white;
  border-radius: 30px;
  font-weight: 300;
  line-height: 35px;
  text-align: center;
  text-decoration: none;
  -webkit-transition: all 0.2s linear;
  -moz-transition: all 0.2s linear;
  -o-transition: all 0.2s linear;
  -ms-transition: all 0.2s linear;
}
#nav ul li a.btn:focus, #nav ul li a.btn:hover {
  color: #ff6b6b;
  border-color: #ff6b6b;
}
#nav ul li a.btn:active {
  color: #c44d58;
  border-color: #c44d58;
}
#nav ul li a.btn.focus {
  color: #c7f464;
  border-color: #c7f464;
}