<span id="forkongithub"><a href="https://github.com/IanLunn/Hover">Fork me on GitHub</a></span>
<h1>Hover.css</h1>
<div class="link">
<a class="grow" href="https://ianlunn.github.io/Hover/">Version 2 now available →</a>
  <small>Includes over 100 effects and SASS/LESS support</small>
</div>
<h2>2D Transforms</h2>

			<a rel="grow" class="button grow">Grow</a>
			<a rel="shrink" class="button shrink">Shrink</a>
			<a rel="pulse" class="button pulse">Pulse</a>
			<a rel="pulse-grow" class="button pulse-grow">Pulse Grow</a>
			<a rel="pulse-shrink" class="button pulse-shrink">Pulse Shrink</a>
			<a rel="push" class="button push">Push</a>
			<a rel="pop" class="button pop">Pop</a>
			<a rel="rotate" class="button rotate">Rotate</a>
			<a rel="grow-rotate" class="button grow-rotate">Grow Rotate</a>
			<a rel="float" class="button float">Float</a>
			<a rel="sink" class="button sink">Sink</a>
			<a rel="hover" class="button hover">Hover</a>
			<a rel="hang" class="button hang">Hang</a>
			<a rel="skew" class="button skew">Skew</a>
			<a rel="skew-forward" class="button skew-forward">Skew Forward</a>
			<a rel="wobble-horizontal" class="button wobble-horizontal">Wobble Horizontal</a>
			<a rel="wobble-vertical" class="button wobble-vertical">Wobble Vertical</a>
			<a rel="wobble-top" class="button wobble-top">Wobble Top</a>
			<a rel="wobble-bottom" class="button wobble-bottom">Wobble Bottom</a>
			


			<h2>Border Transitions</h2>

			<a rel="border-fade" class="button border-fade">Border Fade</a>
			<a rel="hollow" class="button hollow">Hollow</a>
			<a rel="trim" class="button trim">Trim</a>
			<a rel="outline-outward" class="button outline-outward">Outline Outward</a>
			<a rel="outline-inward" class="button outline-inward">Outline Inward</a>
			<a rel="round-corners" class="button round-corners">Round Corners</a>
			


			<h2>Shadow and Glow Transitions</h2>

			<a rel="glow" class="button glow">Glow</a>
			<a rel="box-shadow-outset" class="button box-shadow-outset">Box Shadow Outset</a>
			<a rel="box-shadow-inset" class="button box-shadow-inset">Box Shadow Inset</a>
			<a rel="float-shadow" class="button float-shadow">Float Shadow</a>
			<a rel="hover-shadow" class="button hover-shadow">Hover Shadow</a>
			<a rel="shadow-radial" class="button shadow-radial">Shadow Radial</a>
			


			<h2>Speech Bubbles</h2>
			
			<a rel="bubble-top" class="button bubble-top">Bubble Top</a>
			<a rel="bubble-right" class="button bubble-right">Bubble Right</a>
			<a rel="bubble-bottom" class="button bubble-bottom">Bubble Bottom</a>
			<a rel="bubble-left" class="button bubble-left">Bubble Left</a>
			<a rel="bubble-float-top" class="button bubble-float-top">Bubble Float Top</a>
			<a rel="bubble-float-right" class="button bubble-float-right">Bubble Float Right</a>
			<a rel="bubble-float-bottom" class="button bubble-float-bottom">Bubble Float Bottom</a>
			<a rel="bubble-float-left" class="button bubble-float-left">Bubble Float Left</a>
			


			<h2>Curls</h2>

			<a rel="curl-top-left" class="button curl-top-left">Curl Top Left</a>
			<a rel="curl-top-right" class="button curl-top-right">Curl Top Right</a>
			<a rel="curl-bottom-right" class="button curl-bottom-right">Curl Bottom Right</a>
			<a rel="curl-bottom-left" class="button curl-bottom-left">Curl Bottom Left</a>

<div class="aligncenter">
			<a class="button cta hover-shadow" href="https://github.com/IanLunn/Hover">Download on GitHub</a>
		</div>

<div class="footer">
			<div class="about">
				<h2>About Hover.css</h2>

				<p>All Hover.css effects make use of a single element (with the help of some pseudo-elements where necessary), are self contained so you can easily copy and paste them, and come in CSS and SASS flavours.</p>

				<p>For best results, hover effects use a couple of "hacks" (undesirable but usually necessary lines of code). For more information on these hacks and whether you need them, please read the FAQ.</p>

				<p>Many effects use CSS3 features such as transitions, transforms and animations. Old browsers that don't support these features may need some extra attention to be certain a fallback hover effect is still in place.</p>

				<h3>License</h3>

				<p>hover.css is open source, and made available under a <a href="https://www.opensource.org/licenses/mit-license.php">MIT License</a>. Distribute, use as-is, or modify to your liking in personal and commercial projects. Please retain the original readme and license files.

				<p>Placing author information in your stylesheet, credits page or humans.txt is much appreciated.</p>
			</div>

			<div class="social aligncenter">
				<div class="social-button">
					<iframe src="http://ghbtns.com/github-btn.html?user=IanLunn&repo=Hover&type=watch&count=true" allowtransparency="true" frameborder="0" scrolling="0" width="140" height="20"></iframe>
				</div>

				<div class="social-button">
					<iframe src="http://ghbtns.com/github-btn.html?user=IanLunn&repo=Hover&type=fork" allowtransparency="true" frameborder="0" scrolling="0" width="140" height="20"></iframe>
				</div>

				<div class="social-button">
					<a href="https://twitter.com/share" class="twitter-share-button" data-related="IanLunn" data-dnt="true">Tweet</a>
					<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
				</div>

				<div class="social-button">
					<a href="https://twitter.com/IanLunn" class="twitter-follow-button" data-show-count="false" data-dnt="true">Follow @IanLunn</a>
					<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
				</div>
			</div>

			<div class="author">
				<a class="logo" href="https://ianlunn.co.uk/" title="Visit portfolio of Ian Lunn"><img class="hover" src="https://ianlunn.github.io/Hover/logo-transparent.png" width="60" height="60" /></a>
				<p class="credit">Created by <a href="https://ianlunn.co.uk/" title="Visit portfolio of Ian Lunn">Ian Lunn</a> - Front End Web Developer</p>
			</div>

		</div>

		<script>
		  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
		  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
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		  ga('create', 'UA-11991680-4', 'ianlunn.github.io');
		  ga('send', 'pageview');
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/*
 * Hover.css (https://ianlunn.co.uk/)
 * Version: 1.0
 * Author: Ian Lunn @IanLunn
 * Author URL: https://ianlunn.co.uk/
 * Github: https://github.com/IanLunn/Hover

 * Made available under a MIT License:
 * https://www.opensource.org/licenses/mit-license.php

 * Hover.css Copyright Ian Lunn 2014.
 */


// Default options
$defaultDuration: .3s;
$primaryColour: #ececec;
$secondaryColour: #666;
$shadowColour: rgba(0, 0, 0, .6);



// As is often the case, some devices/browsers need additional code to get CSS to work
// in the most desired way. These mixins are used to quickly drop in hacks for each element
@mixin hideTapHighlightColor() {
	//Prevent highlight colour when element is tapped
	-webkit-tap-highlight-color: rgba(0,0,0,0);
}

@mixin hardwareAccel() {
	//Improve performance on mobile/tablet devices
	transform: translateZ(0);
}

@mixin improveAntiAlias() {
	//Improve aliasing on mobile/tablet devices
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}



/* Default styles for the demo buttons */
.button {
  margin: .4em;
  padding: 1em;
  cursor: pointer;
  background: $primaryColour;
  text-decoration: none;
  color: $secondaryColour;
}


/* 2D TRANSITIONS */

/* Grow */
.grow {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: scale(1.1);
	}
}


/* Shrink */
.shrink {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: scale(.9);
	}
}


/* Pulse */
@keyframes pulse {
	25% {
		transform: scale(1.1);
	}

	75% {
		transform: scale(.9);
	}
}

.pulse {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: pulse;
		animation-duration: 1s;
		animation-timing-function: linear;
		animation-iteration-count: infinite;
	}
}


/* Pulse Grow */
@keyframes pulse-grow {
	to {
		transform: scale(1.1);
	}
}

.pulse-grow {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: pulse-grow;
		animation-duration: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: infinite;
		animation-direction: alternate;
	}
}


/* Pulse Shrink */
@keyframes pulse-shrink {
	to {
		transform: scale(.9);
	}
}

.pulse-shrink {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: pulse-shrink;
		animation-duration: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: infinite;
		animation-direction: alternate;
	}
}


/* Push */
@keyframes push {
	50% {
		transform: scale(.8);
	}

	100% {
		transform: scale(1);
	}
}

.push {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: push;
		animation-duration: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: 1;
	}
}


/* Pop */
@keyframes pop {
	50% {
		transform: scale(1.2);
	}

	100% {
		transform: scale(1);
	}
}

.pop {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: pop;
		animation-duration: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: 1;
	}
}


/* Rotate */
.rotate {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();
	
	&:hover {	
		transform: rotate(4deg);
	}
}


/* Grow Rotate */
.grow-rotate {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();
	
	&:hover {	
		transform: scale(1.1) rotate(4deg);
	}
}


/* Float */
.float {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: translateY(-5px);
	}
}


/* Sink */
.sink {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: translateY(5px);
	}
}


/* Hover */
@keyframes hover {
	50% {
		transform: translateY(-3px);
	}

	100% {
		transform: translateY(-6px);
	}
}

.hover {
	display: inline-block;
	transition-duration: .5s;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: translateY(-6px);
		animation-name: hover;
		animation-duration: 1.5s;
		animation-delay: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: infinite;
		animation-direction: alternate;
	}
}


/* Hang */
@keyframes hang {
	50% {
		transform: translateY(3px);
	}

	100% {
		transform: translateY(6px);
	}
}

.hang {
	display: inline-block;
	transition-duration: .5s;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: translateY(6px);
		animation-name: hang;
		animation-duration: 1.5s;
		animation-delay: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: infinite;
		animation-direction: alternate;
	}
}


/* Skew */
.skew {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: skew(-10deg);
	}
}


/* Skew Forward */
.skew-forward {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: transform;
	transform-origin: 0 100%;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		transform: skew(-10deg);
	}
}


/* Wobble Vertical */
@keyframes wobble-vertical {
	16.65% {
		transform: translateY(8px);
	}

	33.3% {
		transform: translateY(-6px);
	}

	49.95% {
		transform: translateY(4px);
	}

	66.6% {
		transform: translateY(-2px);
	}

	83.25% {
		transform: translateY(1px);
	}

	100% {
		transform: translateY(0);
	}
}

.wobble-vertical {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: wobble-vertical;
		animation-duration: 1s;
		animation-timing-function: ease-in-out;
		animation-iteration-count: 1;
	}
}


/* Wobble Horizontal */
@keyframes wobble-horizontal {
	16.65% {
		transform: translateX(8px);
	}

	33.3% {
		transform: translateX(-6px);
	}

	49.95% {
		transform: translateX(4px);
	}

	66.6% {
		transform: translateX(-2px);
	}

	83.25% {
		transform: translateX(1px);
	}

	100% {
		transform: translateX(0);
	}
}

.wobble-horizontal {
	display: inline-block;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: wobble-horizontal;
		animation-duration: 1s;
		animation-timing-function: ease-in-out;
		animation-iteration-count: 1;
	}
}


/* Wobble Top */
@keyframes wobble-top {
	16.65% {
		transform: skew(-12deg);
	}

	33.3% {
		transform: skew(10deg);
	}

	49.95% {
		transform: skew(-6deg);
	}

	66.6% {
		transform: skew(4deg);
	}

	83.25% {
		transform: skew(-2deg);
	}

	100% {
		transform: skew(0);
	}
}

.wobble-top {
	display: inline-block;
	transform-origin: 0 100%;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: wobble-top;
		animation-duration: 1s;
		animation-timing-function: ease-in-out;
		animation-iteration-count: 1;
	}
}


/* Wobble Bottom */
@keyframes wobble-bottom {
	16.65% {
		transform: skew(-12deg);
	}

	33.3% {
		transform: skew(10deg);
	}

	49.95% {
		transform: skew(-6deg);
	}

	66.6% {
		transform: skew(4deg);
	}

	83.25% {
		transform: skew(-2deg);
	}

	100% {
		transform: skew(0);
	}
}

.wobble-bottom {
	display: inline-block;
	transform-origin: 100% 0;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		animation-name: wobble-bottom;
		animation-duration: 1s;
		animation-timing-function: ease-in-out;
		animation-iteration-count: 1;
	}
}




/* BORDER TRANSITIONS */

/* Border Fade */
.border-fade {
	display: inline-block;
	$borderWidth: 4px;

	transition-duration: $defaultDuration;
	transition-property: box-shadow;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	box-shadow: 
			inset 0 0 0 $borderWidth $primaryColour,
			0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */ 
	
	&:hover {
		box-shadow: 
			inset 0 0 0 $borderWidth $secondaryColour,
			0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
	}
}


/* Hollow */
.hollow {
	display: inline-block;
	$borderWidth: 4px;

	transition-duration: $defaultDuration;
	transition-property: background;

	transform: translateZ(0); /* Hack to improve performance on mobile/tablet devices */
	box-shadow: 
		inset 0 0 0 $borderWidth $primaryColour,
		0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */

	&:hover {
		background: none;
	}
}


/* Trim */
.trim {
	display: inline-block;
	$outerBorderWidth: 4px;
	$innerBorderWidth: 4px;

	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		content: '';
		position: absolute;
		border: white solid $innerBorderWidth;
		top: $outerBorderWidth;
		left: $outerBorderWidth;
		right: $outerBorderWidth;
		bottom: $outerBorderWidth;
		opacity: 0;
		transition-duration: $defaultDuration;
		transition-property: opacity;
	}

	&:hover:before {
		opacity: 1;
	}
}


/* Outline Outward */
.outline-outward {
	display: inline-block;
	$outerBorderWidth: 4px;
	$innerBorderWidth: 4px;

	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		content: '';
		position: absolute;
		border: $primaryColour solid $outerBorderWidth;
		top: 0;
		right: 0;
		bottom: 0;
		left: 0;
		transition-duration: .3s;
		transition-property: top right bottom left;
	}

	&:hover:before {
		top: -($outerBorderWidth + $innerBorderWidth);
		right: -($outerBorderWidth + $innerBorderWidth);
		bottom: -($outerBorderWidth + $innerBorderWidth);
		left: -($outerBorderWidth + $innerBorderWidth);
	}
}


/* Outline Inward */
.outline-inward {
	display: inline-block;
	$outerBorderWidth: 4px;
	$innerBorderWidth: 4px;

	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		content: '';
		position: absolute;
		border: $primaryColour solid $outerBorderWidth;
		top: -($outerBorderWidth + $innerBorderWidth) * 2;
		right: -($outerBorderWidth + $innerBorderWidth) * 2;
		bottom: -($outerBorderWidth + $innerBorderWidth) * 2;
		left: -($outerBorderWidth + $innerBorderWidth) * 2;
		opacity: 0;
		transition-duration: .3s;
		transition-property: top right bottom left;
	}

	&:hover:before {
		top: -($outerBorderWidth + $innerBorderWidth);
		right: -($outerBorderWidth + $innerBorderWidth);
		bottom: -($outerBorderWidth + $innerBorderWidth);
		left: -($outerBorderWidth + $innerBorderWidth);
		opacity: 1;
	}
}


/* Round Corners */
.round-corners {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: border-radius;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		border-radius: 1em;
	}
}




/* SHADOW/GLOW TRANSITIONS */

/* Glow */
.glow {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: box-shadow;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		box-shadow: 0 0 8px $shadowColour;
	}
}


/* Box Shadow Outset */
.box-shadow-outset {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: box-shadow;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:hover {
		box-shadow: 2px 2px 2px $shadowColour;
	}
}


/* Box Shadow Inset */
.box-shadow-inset {
	display: inline-block;
	transition-duration: $defaultDuration;
	transition-property: box-shadow;

	box-shadow: inset 0 0 0 $shadowColour,
		0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */

	@include hideTapHighlightColor();
	@include hardwareAccel();

	&:hover {
		box-shadow: inset 2px 2px 2px $shadowColour,
		0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
	}
}


/* Float Shadow */
.float-shadow {
	display: inline-block;
	position: relative;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
	  position: absolute;
	  z-index: -1;
	  content: '';
	  top: 100%;
	  left: 5%;
	  height: 10px;
	  width: 90%;
	  opacity: 0;
	  background: radial-gradient(ellipse at center, rgba(0,0,0,.35) 0%,rgba(0,0,0,0) 80%); /* W3C */
		transition-duration: $defaultDuration;
		transition-property: transform opacity;
	}

	&:hover {
		transform: translateY(-5px); /* move the element up by 5px */

		&:before {
			opacity: 1;
			transform: translateY(5px); /* move the element down by 5px (it will stay in place because it's attached to the element that also moves up 5px) */
		}
	}
}


/* Hover Shadow */
@keyframes hover {
	50% {
		transform: translateY(-3px);
	}

	100% {
		transform: translateY(-6px);
	}
}

@keyframes hover-shadow {
	0% {
		transform: translateY(6px);
		opacity: .4;
	}

	50% {
		transform: translateY(3px);
		opacity: 1;
	}


	100% {
		transform: translateY(6px);
		opacity: .4;
	}
}

.hover-shadow {
	display: inline-block;
	position: relative;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
	  position: absolute;
	  z-index: -1;
	  content: '';
	  top: 100%;
	  left: 5%;
	  height: 10px;
	  width: 90%;
	  opacity: 0;
	  background: radial-gradient(ellipse at center, rgba(0,0,0,.35) 0%,rgba(0,0,0,0) 80%); /* W3C */
		transition-duration: $defaultDuration;
		transition-property: transform opacity;
	}

	&:hover {
		transform: translateY(-6px);
		animation-name: hover;
		animation-duration: 1.5s;
		animation-delay: $defaultDuration;
		animation-timing-function: linear;
		animation-iteration-count: infinite;
		animation-direction: alternate;

		&:before {
			opacity: .4;
			transform: translateY(6px);
			animation-name: hover-shadow;
			animation-duration: 1.5s;
			animation-delay: .3s;
			animation-timing-function: linear;
			animation-iteration-count: infinite;
			animation-direction: alternate;
		}
	}
}


/* Shadow Radial */
.shadow-radial {
	display: inline-block;
	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before,
	&:after {
		pointer-events: none;
		position: absolute;
		content: '';
    left: 0;
    width: 100%;
    box-sizing: border-box;
    background-repeat: no-repeat;
    height: 5px;
    opacity: 0;
    transition-duration: $defaultDuration;
    transition-property: opacity;
	}

	&:before {
		bottom: 100%;
    background: radial-gradient(ellipse at 50% 150%, $shadowColour 0%, rgba(0, 0, 0, 0) 80%);
	}

	&:after {
		top: 100%;
		background: radial-gradient(ellipse at 50% -50%, $shadowColour 0%, rgba(0, 0, 0, 0) 80%);
	}

	&:hover:before,
	&:hover:after {
		opacity: 1;
	}
}



/* SPEECH BUBBLES */

$tipWidth: 10px;  //the width of the speech bubble tip
$tipHeight: 10px; //the height of the speech bubble tip
$tipColour: $primaryColour;

/* Bubble Top */
.bubble-top {
	display: inline-block;
	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		border-style: solid;
		transition-duration: $defaultDuration;
		left: calc(50% - #{$tipWidth});
		border-width: 0 $tipWidth $tipHeight $tipWidth;
		border-color: transparent transparent $tipColour transparent;
		transition-property: top;
	}

	&:hover:before {
		top: -($tipHeight);
	}
}


/* Bubble Right */
.bubble-right {
	display: inline-block;
	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		border-style: solid;
		transition-duration: $defaultDuration;
		transition-property: right;
		top: calc(50% - #{$tipHeight});
		right: 0;
		border-width: $tipHeight 0 $tipHeight $tipWidth;
		border-color: transparent transparent transparent $tipColour ;
	}

	&:hover:before {
		right: -($tipWidth);
	}
}


/* Bubble Bottom */
.bubble-bottom {
	display: inline-block;
	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		border-style: solid;
		transition-duration: $defaultDuration;
		transition-property: bottom;
		left: calc(50% - #{$tipWidth});
		bottom: 0;
		border-width: $tipHeight $tipWidth 0 $tipWidth;
		border-color: $tipColour transparent transparent transparent;
	}

	&:hover:before {
		bottom: -($tipHeight);
	}	
}


/* Bubble Left */
.bubble-left {
	display: inline-block;
	position: relative;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		border-style: solid;
		transition-duration: $defaultDuration;
		transition-property: left;
		top: calc(50% - #{$tipHeight});
		left: 0;
		border-width: $tipHeight $tipWidth $tipHeight 0;
		border-color: transparent $tipColour transparent transparent;
	}

	&:hover:before {
		left: -($tipWidth);
	}
}


/* Bubble Float Top */
.bubble-float-top {
	display: inline-block;
	position: relative;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		left: calc(50% - #{$tipWidth});
		top: 0;
		border-style: solid;
		border-width: 0 $tipWidth $tipHeight $tipWidth;
		border-color: transparent transparent $tipColour transparent;
		transition-duration: $defaultDuration;
		transition-property: top;
	}


	&:hover {
		transform: translateY(5px) translateZ(0);
	}

	&:hover:before {
		top: -($tipHeight);
	}
}

/* Bubble Float Right */
.bubble-float-right {
	display: inline-block;
	position: relative;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		top: calc(50% - #{$tipHeight});
		right: 0;
		content: '';
		border-style: solid;
		border-width: $tipHeight 0 $tipHeight $tipWidth;
		border-color: transparent transparent transparent $tipColour;
		transition-duration: $defaultDuration;
		transition-property: right;
	}

	&:hover {
		transform: translateX(-5px);
	}

	&:hover:before {
		right: -($tipWidth);
	}
}


/* Bubble Float Bottom */
.bubble-float-bottom {
	display: inline-block;
	position: relative;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		left: calc(50% - #{$tipWidth});
		bottom: 0;
		border-style: solid;
		border-width: $tipHeight $tipWidth 0 $tipWidth;
		border-color: $tipColour transparent transparent transparent;
		transition-duration: $defaultDuration;
		transition-property: bottom;
	}

	&:hover {
		transform: translateY(-5px) translateZ(0);
	}

	&:hover:before {
		bottom: -($tipHeight);
	}
}


/* Bubble Float Left */
.bubble-float-left {
	display: inline-block;
	position: relative;
	transition-duration: $defaultDuration;
	transition-property: transform;

	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		z-index: -1;
		content: '';
		top: calc(50% - #{$tipHeight});
		left: 0;
		border-style: solid;
		border-width: $tipHeight $tipWidth $tipHeight 0;
		border-color: transparent $tipColour transparent transparent;
		transition-duration: $defaultDuration;
		transition-property: left;
	}

	&:hover {
		transform: translateX(5px);
	}

	&:hover:before {
		left: -($tipWidth);
	}
}



/* CURLS */

// Curl dimensions
$curlWidth: 25px;
$curlHeight: 25px;

// Curl colours
$revealAreaColour: white;			// reveal area behind the curl
$curlLineColour: #aaa;				// crease line
$curlTransitionColour: #ccc;	// colour transitioning from crease line to final colour
$curlLastColour: white;				// final colour of the back of the curl


/* Curl Top Left */
.curl-top-left {
	display: inline-block;
	position: relative;
	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		content: '';
		height: 0;
		width: 0;
		top: 0;
		left: 0;
		background: $revealAreaColour; /* IE9 */
		background: linear-gradient(
			135deg, 
			$revealAreaColour 45%,
			$curlLineColour 50%,		
			$curlTransitionColour 56%,		
			$curlLastColour 80%   
		);
		filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#ffffff', endColorstr='#000000');/*For IE7-8-9*/

		z-index: 1000;
		box-shadow: 1px 1px 1px rgba(0, 0, 0, .4);
		transition-duration: $defaultDuration;
		transition-property: width height;
	}

	&:hover:before {
		width: $curlWidth;
		height: $curlHeight;
	}
}


/* Curl Top Right */
.curl-top-right {
	display: inline-block;
	position: relative;
	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		content: '';
		height: 0;
		width: 0;
		top: 0;
		right: 0;
		background: $revealAreaColour; /* IE9 */
		background: linear-gradient(
			225deg, 
			$revealAreaColour 45%,
			$curlLineColour 50%,		
			$curlTransitionColour 56%,		
			$curlLastColour 80%   
		);
		box-shadow: -1px 1px 1px rgba(0, 0, 0, .4);
		transition-duration: $defaultDuration;
		transition-property: width height;
	}

	&:hover:before {
		width: $curlWidth;
		height: $curlHeight;
	}
}


/* Curl Bottom Right */
.curl-bottom-right {
	display: inline-block;
	position: relative;
	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		content: '';
		height: 0;
		width: 0;
		bottom: 0;
		right: 0;
		background: $revealAreaColour; /* IE9 */
		background: linear-gradient(
			315deg, 
			$revealAreaColour 45%,
			$curlLineColour 50%,		
			$curlTransitionColour 56%,		
			$curlLastColour 80%   
		);
		box-shadow: -1px -1px 1px rgba(0, 0, 0, .4);
		transition-duration: $defaultDuration;
		transition-property: width height;
	}

	&:hover:before {
		width: $curlWidth;
		height: $curlHeight;
	}
}



/* Curl Bottom Left */
.curl-bottom-left {
	display: inline-block;
	position: relative;
	@include hideTapHighlightColor();
	@include hardwareAccel();
	@include improveAntiAlias();

	&:before {
		pointer-events: none;
		position: absolute;
		content: '';
		height: 0;
		width: 0;
		bottom: 0;
		left: 0;
		background: $revealAreaColour; /* IE9 */
		background: linear-gradient(
			45deg, 
			$revealAreaColour 45%,
			$curlLineColour 50%,		
			$curlTransitionColour 56%,		
			$curlLastColour 80%   
		);
		box-shadow: 1px -1px 1px rgba(0, 0, 0, .4);
		transition-duration: $defaultDuration;
		transition-property: width height;
	}

	&:hover:before {
		width: $curlWidth;
		height: $curlHeight;
	}
}


.link {
  display: block;
  width: 100%;
  text-align: center;
}

.link a {
  font-weight: bold;
}

#forkongithub a{background:#000;color:#fff;text-decoration:none;font-family:arial, sans-serif;text-align:center;font-weight:bold;padding:5px 40px;font-size:1rem;line-height:2rem;position:relative;transition:0.5s;}#forkongithub a:hover{background:#060;color:#fff;}#forkongithub a::before,#forkongithub a::after{content:"";width:100%;display:block;position:absolute;top:1px;left:0;height:1px;background:#fff;}#forkongithub a::after{bottom:1px;top:auto;}@media screen and (min-width:800px){#forkongithub{position:absolute;display:block;top:0;right:0;width:200px;overflow:hidden;height:200px;}#forkongithub a{width:200px;position:absolute;top:60px;right:-60px;transform:rotate(45deg);-webkit-transform:rotate(45deg);box-shadow:4px 4px 10px rgba(0,0,0,0.8);}}

External CSS

  1. https://ianlunn.github.io/Hover/css/demo-page.css

External JavaScript

This Pen doesn't use any external JavaScript resources.