img ul {
  list-style-type: none;
}

img li {
  display: inline-block;
	width: 100%;
}

input[type="checkbox"][id^="cb"] {
  display: none;
}

label {
  border: 1px solid #fff;
  padding: 5px;
  display: block;
  position: relative;
  cursor: pointer;
  margin: 5px;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

label::before {
  background-color: white;
  color: white;
  content: " ";
  display: block;
  border-radius: 50%;
  border: 1px solid grey;
  position: absolute;
  top: -5px;
  left: -5px;
  width: 25px;
  height: 25px;
  text-align: center;
  line-height: 28px;
  transition-duration: 0.4s;
  transform: scale(0);
}

label img {
  height: 100%;
  width: 100%;
  transition-duration: 0.2s;
}

:checked+label {
	border-left: 1px solid #55adff;
	border-top: 1px solid #eb8ac0;
	border-right: 1px solid #ff3630;
	border-bottom: 1px solid #4b249e;
}

:checked+label::before {
  content: "✓";
  background-color: grey;
  transform: scale(1);
}

:checked+label img {
  transform: scale(0.9);
  box-shadow: 0 0 5px #333;
  z-index: -1;
}

.imageholder{
	float: left;
	width: 33.33%;
	overflow: hidden;
}