.wrapper
	.input-group
		input.search(type="text" placeholder="Searching for something?")
		span.bar
		
View Compiled
// Variables
$black: #000
$white: #fff
$blue: #26547c
$green: #06d6a0
$light-gray: #a1a1a1

// Mixins
=size($h, $w)
	height: $h
	width: $w

=flex-center
	display: flex
	align-items: center
	justify-content: center

=gradient($deg, $fc, $sc)
	background: linear-gradient($deg, $fc 0%, $sc 100%)

// Style
.wrapper
	+gradient(45deg, $blue, $green)
	+size(100vh, 100vw)
	+flex-center
	overflow: hidden

	.disclaimer
		bottom: 15px
		position: absolute

.input-group
	position: relative

	.search
		+size(15px, 15px)
		background-color: $white
		border: 0
		border-radius: 50%
		box-shadow: 0 2px 2px 0 rgba(0,0,0,0.15)
		cursor: pointer
		color: $white
		outline: none
		padding: 5px
		position: relative
		transition: all 150ms cubic-bezier(0.2, 0.6, 0.252, 1.2)

		~ .bar
			+size(4px, 15px)
			background: $white
			border-radius: 4px
			box-shadow: 0 2px 2px 0 rgba(0,0,0,0.15)
			position: absolute
			display: block
			opacity: 1
			right: -9px
			top: 24px
			transform: rotate(45deg)
			transition: opacity 150ms ease
		
		&::placeholder
			color: $white
	
		&:focus
			+size(25px, 200px)
			border-radius: 3px
			color: $blue
			cursor: initial
	
			&::placeholder
				color: $light-gray
	
			~ .bar
				box-shadow: none
				opacity: 0
				right: 0
				top: 5px
View Compiled

External CSS

  1. https://fonts.googleapis.com/css?family=Gaegu

External JavaScript

This Pen doesn't use any external JavaScript resources.