#btn--yp {
	box-sizing: content-box;
	position: fixed;
	z-index: 9;
	bottom: 1em;
	right: 1em;
	border: solid 1em transparent;
	width: 4.625em;
	height: 3.25em;
	background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/2017/icon-yp.svg) 50%/cover content-box;
	font: 16px/ 1.25 trebuchet ms, sans-serif;
	text-indent: 200vw;
	text-shadow: none;
	filter: grayscale(1) drop-shadow(0 0 1px #e8e0e0);
	transition: .5s;
	white-space: nowrap;
  }
  #btn--yp:before {
	box-sizing: inherit;
	position: absolute;
	left: 0;
	bottom: 100%;
	margin: 1em -.5em;
	padding: .5em;
	width: 100%;
	border-radius: 5px;
	background: #e8e0e0;
	color: #000;
	text-align: center;
	text-decoration: none;
	text-indent: 0vw;
	white-space: normal;
	animation: float 1s ease-in-out infinite alternate;
	content: attr(data-txt);
  }
  #btn--yp:hover, #btn--yp:focus {
	outline: none;
	filter: grayscale(0) drop-shadow(0 0 1px crimson);
  }
  
  @keyframes float {
	to {
	  transform: translateY(0.75em);
	}
  }
  *,
  :before,
  :after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
	font: inherit;
  }
  
  
  
  [id="search-btn"] {
	position: absolute;
	left: -100vw;
  }
  [id="search-btn"] ~ * {
	--i: var(--pos, 1);
	--j: calc(1 - var(--i));
  }
  [id="search-btn"]:checked ~ * {
	--pos: 0;
  }
  
  [for="search-btn"] {
	order: 1;
	overflow: hidden;
	position: relative;
	z-index: 2;
	margin-left: -1.25em;
	width: 3.5em;
	height: 3.5em;
	border-radius: 50%;
	transform: translate(var(--pos, -10em)) rotate(45deg);
	background: hsl(calc(336 - var(--i) * 269), calc(77% + var(--i) * 2%), calc(49% + var(--i) * 13%));
	text-indent: -100vw;
	transition: 0.65s ease-out;
	cursor: pointer;
  }
  [for="search-btn"]:before, [for="search-btn"]:after {
	position: absolute;
	top: 50%;
	left: 50%;
	margin: -0.8125em;
	width: 1.625em;
	height: 1.625em;
	transition: inherit;
	content: "";
  }
  [for="search-btn"]:before {
	margin-top: -0.08125em;
	height: 0.203125em;
	transform-origin: 100% 0;
	transform: translate(var(--pos, 0.40625em)) scalex(calc(1 - var(--i) * 0.5));
	background: currentcolor;
  }
  [for="search-btn"]:after {
	border: solid 0.203125em currentcolor;
	border-radius: calc(var(--i) * 50%);
	transform: translate(var(--pos, -0.40625em)) scalex(calc(var(--j) *0.125 + var(--i)));
	box-shadow: inset 0 0 0 calc(var(--j) *0.8125em) currentcolor;
	transition-property: border-radius, transform, box-shadow;
	transition-timing-function: cubic-bezier(calc(var(--j) * 0.42), 0, calc(1 - var(--i) * 0.42), 1), cubic-bezier(calc(var(--i) * 0.42), 0, calc(1 - var(--j) * 0.42), 1);
  }
  
  [id="search-bar"] {
	margin-right: -1em;
	border: none;
	padding: 0 1em;
	width: 12em;
	height: 2.6em;
	border-radius: 2.6em;
	transform: translate(var(--pos, 6em));
	background: #3f324d;
	--cp: inset(-2em var(--pos, 100%) -2em -2em);
	-webkit-clip-path: var(--cp);
	clip-path: var(--cp);
	color: #fff;
	font: 1em century gothic, verdana, arial, sans-serif;
	transition: 0.65s;
  }
  [id="search-bar"]::placeholder {
	opacity: 0.5;
	color: inherit;
	font-size: 0.875em;
	letter-spacing: 1px;
	text-shadow: 0 0 1px, 0 0 2px;
  }
  [id="search-bar"]:focus {
	outline: none;
	box-shadow: 0 0 1.5em #ffeacc, 0 1.25em 1.5em rgba(0, 0, 0, 0.2);
	background: #ffeacc;
	color: #000;
  }