用户:Staf Irity/Sandbox.css

.float0{
	position:fixed;
	overflow:hidden;
	top:25vh;
	right:0;
	margin:0px;
	padding:0px;
	z-index:100;
}
.float{
	position:relative;
	right:calc(20px - 100%);
	transition: all .2s ease-out;
}
.float0:hover .float{
	right:0;
}
.slidein {
  animation-duration: 3s;
  animation-name: slidein;
  animation-iteration-count: 3;
  animation-direction: alternate;
}
@keyframes slidein {
  from {
    margin-left:100%;
    width:300%
  }

  to {
   margin-left:0%;
   width:100%;
 }
}