/* Made by Jimmy Gillam */
html, body {
  padding: 0;
  margin: 0;
  background-color: #667788;
  color: #efefef;
  font-family: 'Open Sans';
}

.container {
  box-sizing: border-box;
  padding: 25px;
  text-align: center;
}
.container h2 {
  margin-bottom: 40px;
}
.container p {
  margin-top: 40px;
}

/* Checkmark style starts */
@-moz-keyframes dothabottomcheck {
  0% {
    height: 0;
  }

  100% {
    height: 50px;
  }
}
@-webkit-keyframes dothabottomcheck {
  0% {
    height: 0;
  }

  100% {
    height: 50px;
  }
}
@keyframes dothabottomcheck {
  0% {
    height: 0;
  }

  100% {
    height: 50px;
  }
}
@keyframes dothatopcheck {
  0% {
    height: 0;
  }

  50% {
    height: 0;
  }

  100% {
    height: 120px;
  }
}
@-webkit-keyframes dothatopcheck {
  0% {
    height: 0;
  }

  50% {
    height: 0;
  }

  100% {
    height: 120px;
  }
}
@-moz-keyframes dothatopcheck {
  0% {
    height: 0;
  }

  50% {
    height: 0;
  }

  100% {
    height: 120px;
  }
}
input[type=checkbox] {
  display: none;
}

.check-box {
  height: 100px;
  width: 100px;
  background-color: transparent;
  border: 10px solid black;
  border-radius: 5px;
  position: relative;
  display: inline-block;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -moz-transition: border-color ease 0.2s;
  -o-transition: border-color ease 0.2s;
  -webkit-transition: border-color ease 0.2s;
  transition: border-color ease 0.2s;
  cursor: pointer;
}
.check-box::before, .check-box::after {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  position: absolute;
  height: 0;
  width: 20px;
  background-color: #34b93d;
  display: inline-block;
  -moz-transform-origin: left top;
  -ms-transform-origin: left top;
  -o-transform-origin: left top;
  -webkit-transform-origin: left top;
  transform-origin: left top;
  border-radius: 5px;
  content: ' ';
  -webkit-transition: opacity ease .5;
  -moz-transition: opacity ease .5;
  transition: opacity ease .5;
}
.check-box::before {
  top: 72px;
  left: 41px;
  box-shadow: 0 0 0 5px #667788;
  -moz-transform: rotate(-135deg);
  -ms-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  -webkit-transform: rotate(-135deg);
  transform: rotate(-135deg);
}
.check-box::after {
  top: 37px;
  left: 5px;
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

input[type=checkbox]:checked + .check-box,
.check-box.checked {
  border-color: #34b93d;
}
input[type=checkbox]:checked + .check-box::after,
.check-box.checked::after {
  height: 50px;
  -moz-animation: dothabottomcheck 0.2s ease 0s forwards;
  -o-animation: dothabottomcheck 0.2s ease 0s forwards;
  -webkit-animation: dothabottomcheck 0.2s ease 0s forwards;
  animation: dothabottomcheck 0.2s ease 0s forwards;
}
input[type=checkbox]:checked + .check-box::before,
.check-box.checked::before {
  height: 120px;
  -moz-animation: dothatopcheck 0.4s ease 0s forwards;
  -o-animation: dothatopcheck 0.4s ease 0s forwards;
  -webkit-animation: dothatopcheck 0.4s ease 0s forwards;
  animation: dothatopcheck 0.4s ease 0s forwards;
}