/*body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}*/

/**, *::before, *::after {
  box-sizing: border-box;
}*/

@-webkit-keyframes rotate {
  100% {
    transform: rotate(1turn);
  }
}

@keyframes rotate {
  100% {
    transform: rotate(1turn);
  }
}
.rainbow {
  position: relative;
  z-index: 0;
 /* width: 400px;
  height: 300px;*/
  /*border-radius: 10px;*/
  overflow: hidden;
  padding: 2rem;
}
.rainbow::before {
  content: "";
  position: absolute;
  z-index: -2;
  left: -50%;
  top: -50%;
  width: 200%;
  height: 200%;
  background-color: #0ab0b6;
  background-repeat: no-repeat;
  background-size: 40% 40%, 40% 40%;
  background-position: 0 0, 100% 0, 100% 100%, 0 100%;
  background-image: linear-gradient(#ffa200, #ffa200), linear-gradient(#4587ff, #4587ff), linear-gradient(#ff2e84, #ff2e84), linear-gradient(#4cffdb, #4cffdb);
  -webkit-animation: rotate 10s linear infinite;
          animation: rotate 10s linear infinite;
}
.rainbow::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 1px;
  top: 1px;
  width: calc(100% - 2px);
  height: calc(100% - 2px);
  background: white;
  /*border-radius: 5px;*/
  -webkit-animation: opacityChange 8s infinite alternate;
          animation: opacityChange 8s infinite alternate;
}

@-webkit-keyframes opacityChange {
  50% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}

@keyframes opacityChange {
  50% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}

/*//*/
/*html, body{
	width: 100%; height: 100%;
	background-color: #DDFFF7;
	z-index: 1;
	position: relative;
	overflow: hidden;
	
}

body{
	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items:center;
	color:#fff;
}
.box{
	width: 300px; height: 200px;
	background-color: #DDFFF7;
	position: relative;
	box-shadow: 10px 10px 42px 0 rgba(0,0,0,0.75);
}
.box:after, .box:before{
	mix-blend-mode:multiply;
	filter:none;
	z-index: -1;
	content:'';
	width:calc(100% + (50px * 2));
	height:calc(100% + (50px * 2));
	position: absolute;
	display: block;
	animation: border 10s ease-in-out infinite;
	transform:translateX(-50px) translateY(-50px);
}
@keyframes border {
  0%, 100% {
    -webkit-clip-path: polygon(0 0, calc(100% - (33.3333333333px)) calc(0% + (33.3333333333px)), 100% 100%, calc(0% + (33.3333333333px)) calc(100% - (33.3333333333px)));
            clip-path: polygon(0 0, calc(100% - (33.3333333333px)) calc(0% + (33.3333333333px)), 100% 100%, calc(0% + (33.3333333333px)) calc(100% - (33.3333333333px)));
  }
  50% {
    -webkit-clip-path: polygon(calc(0% + (33.3333333333px)) calc(0% + (33.3333333333px)), 100% 0, calc(100% - (33.3333333333px)) calc(100% - (33.3333333333px)), 0 100%);
            clip-path: polygon(calc(0% + (33.3333333333px)) calc(0% + (33.3333333333px)), 100% 0, calc(100% - (33.3333333333px)) calc(100% - (33.3333333333px)), 0 100%);
  }
}

.box:after{
	animation-delay: -5s;
	background-color: #93e1d8;
	clip-path: polygon(0 0, calc(100% - (33.3333333333px)) calc(0% + (33.3333333333px)), 100% 100%, calc(0% + (33.3333333333px)) calc(100% - (33.3333333333px)));
}
.box:before {
	background-color: #AA4465;
	  clip-path: polygon(calc(0% + (33.3333333333px)) calc(0% + (33.3333333333px)), 100% 0, calc(100% - (33.3333333333px)) calc(100% - (33.3333333333px)), 0 100%);
}

.box:hover:after{
	animation-delay: -0.1s;
}
.box:hover:before, .box:hover:after {

          animation-duration: 0.2s;
}*/