<a class="credits" href="https://mattdanielbrown.com" target="_blank">mattdanielbrown.com</a>

	<h1><b>CSS3 + jQuery</b><br>Material Design Search Animation</h1>
	<!-- SECTION -->
	<div class="section" id="section-1">
		<div class="search-container transition">
			<div class="input">
				<label>Search</label>
				<input id="search-field" type="text" onkeydown="search()">
			</div>
			<i id="search-toggle" class="material-icons">search</i>
			<i id="search-toggle-2" class="material-icons" style="display:none;">search</i>
			<span class="circle"></span>
		</div>
	</div>
@import "breakpoint";
@import "modularscale@3.*";
@import "bourbon@5.*";

html,
body {
	// background: #ffd46c;
	background: cornflowerblue;
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
	font-size: 18px;
	font-family: "Roboto", Sans-serif;
}
.credits {
	position: fixed;
	bottom: 20px;
	right: 20px;
	color: #fff;
	font-weight: 300;
	text-decoration: none;
	background: rgba(0, 0, 0, 0.1);
	padding: 10px 20px;
	border-radius: 30px;
}
/* DEFAULT */

h1 {
	text-align: center;
	padding: 80px 0;
	// background: rgb(232, 188, 79);
	background: shade(cornflowerblue, 10%);
	margin: 0;
	color: #fff;
	text-transform: uppercase;
	font-weight: 100;
}
p {
	margin: 0;
	text-align: left;
}
.transition,
.input.active:before,
.input,
.input input {
	
	transition: 250ms ease-in-out;
	
	// transition-timing-function: cubic-bezier(0.4, 0, 0.5, 1);
}
.rounded {
	border-radius: 5px;
}
.section {
	padding: 150px 0;
	text-align: center;
	display: block;
}
.material-icons {
	color: #999;
	vertical-align: middle;
	font-size: 40px !important;
	position: absolute;
	right: 10px;
	top: 10px;
	z-index: 2;
	background-color: #fff;
	// border-radius: 50%;
	cursor: pointer;
}
/* SEARCH */

.search-container {
	user-select: none !important;
	display: inline-block;
	background-color: #fff;
	padding: 10px 10px 10px 10px;
	border-radius: 50%;
	// border-radius: 4px;
	box-sizing: border-box;
	min-width: 60px;
	height: 60px;
	box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
	position: relative;
	transition: all 200ms !important;
}
.input input {
	display: block;
	vertical-align: middle;
	line-height: 40px;
	height: 40px;
	border: 0;
	padding: 10px 10px 10px 0;
	box-sizing: border-box;
	width: 250px;
	border-radius: 2px;
	z-index: 1;
	background-color: transparent;
	font-family: inherit;
	font-size: 1em;
	color: #ffd46c;
	color: mediumslateblue;
	&::placeholder, &:placeholder {
		transition: all 200ms !important;
	}
}
.search-container.active {
	background-color: white;
	text-align: right;
	border-radius: 3px;
	padding: 10px 60px 10px 10px;
}
.input {
	position: relative;
	z-index: 1;
	vertical-align: middle;
	width: 0;
	overflow: hidden;
	height: 40px;
	display: inline-block;
}
.input label {
	transition: all 200ms !important;
	position: absolute;
	left: 0;
	line-height: 40px;
	opacity: 0.3;
	z-index: -1;
}
.input:before {
	content: "";
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	min-width: 0;
	height: 2px;
	background-color: #ffd46c;
	// background-color: cornflowerblue;
	background-color: mediumslateblue;
	// transition-delay: .5s !important;
}
.input.active:before {
	width: 100%;
}
.input input:focus {
	outline: none;
}
.input.active {
	width: 250px;
	height: 40px;
}
View Compiled
$('#search-toggle').click(function(){
		$(this).hide();
		$('#search-toggle-2').show();
		$('.search-container').addClass('active');
		$('.input').addClass('active');
		$('#search-field').focus();
		$('.input').children('label').hide();
	});
	
	$('#search-toggle-2').click(function(){
		$(this).hide();
		$('#search-toggle').show();
		$('.search-container').removeClass('active');
		$('.input').removeClass('active');
	});
	
	function search() {
		if(event.keyCode == 13) {
			$('#search-toggle-2').hide();
			$('#search-toggle').show();
			$('.search-container').removeClass('active');
			$('.input').removeClass('active');
		}
	};
	
	$('#search-field').click(function(){
		$('.input').children('label').hide();
	});
	
	$('#search-field').blur(function(){
		var content = $(this).val();
		var contentLen = content.length;
		console.log(contentLen);
		if($(this).val() && contentLen > 0 && content !== " "){
			// $('.input').children('label').hide();
			// console.log();
				$('.input').children('label').hide();
				$('#search-toggle-2').hide();
				$('#search-toggle').show();
				$('.search-container').removeClass('active');
				$('.input').removeClass('active');
		} else {
			$('.input').children('label').show();
		}
	});


View Compiled

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/material-design-icons/3.0.1/iconfont/material-icons.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js