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CSS

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HTML 

              
                <main>
	<div class="center">
		<h1>Tooltip</h1>
		<p>
			A tooltip that uses CSS animations to animate in & out.
			<span class="tooltip-wrap">
				<button class="btn btn-link tooltip-trigger" data-tooltip-trigger>Red-eyed Tree Frog</button>
				<span class="tooltip" data-tooltip>
					The red-eyed tree frog flashes its brightly colored body parts when startled. It is also called the red-eyed leaf frog. They are nocturnal hunters that use keen eyesight to find prey.
					<a href="http://animals.nationalgeographic.com/animals/amphibians/red-eyed-tree-frog/">http://animals.nationalgeographic.com/animals/amphibians/red-eyed-tree-frog/</a>
				</span>
			</span>
			quod, dolor sequi, similique commodi quam temporibus aperiam, amet reprehenderit nulla quo saepe veritatis libero!
		</p>
		<p>
			Lorem ipsum dolor sit amet, consectetur adipisicing elit. Natus facilis ipsa officia, quasi veritatis eos rem explicabo minus ea enim?
		</p>
	</div>
</main>
!

CSS 

              
                /* ==========================================================================
   $Variables
   ========================================================================== */

/* $Colors
   ========================================================================== */
$yellow:				#F0BF19;
$orange:				#EF602C;
$orange--dark:			darken($orange, 10%);
$green:					#0FC03E;
$green--dark:			#0DA836;

$color-bg:				$orange--dark;
$color-bg:				$orange--dark;
$color-primary:			$green;
$color-primary--dark:	$green--dark;
$color-accent:			$yellow;

/* $Type
   ========================================================================== */
$base-font-size: 20px;
$base-scale:     1.4;
$base-rhythm:    ceil($base-font-size * $base-scale);

/* $Fonts
   ========================================================================== */
$font-primary: 'Titillium Web', sans-serif;




/* ==========================================================================
   $Mixins
   ========================================================================== */

/* $Baseline
   ========================================================================== */
@mixin show-baseline($base: $base-font-size, $baseline: $base-scale, $rhythm: $base-rhythm, $color: dodgerBlue, $opacity: 0.75) {
        
    $rhythm: $rhythm + 0px;

    background-image: repeating-linear-gradient(to bottom, rgba($color, $opacity), rgba(white, 0) 1px, rgba(white, 0));
    background-size: 100% $rhythm;
}




/* ==========================================================================
   $Setup
   ========================================================================== */
body {
	background-color: $color-bg;
	color: #fff;
	font: 300 20px/1.43 $font-primary;
}

main {
	display: flex;
	align-items: center;
	height: 100vh;
	justify-content: center;
}

	.center {
		// @include show-baseline($color: #fff, $opacity: 1);
		max-width: 62%;
	}

/* $Typography
   ========================================================================== */
h1 {
	font: 700 39px/56px $font-primary;
	margin: 28px 0;
}

p { margin: 0 0 28px; }

%link-styles {
	color: $color-primary;
	border-bottom: 1px dotted $color-primary;
	font-weight: 700;
}

a { @extend %link-styles; }


/* ==========================================================================
   $Buttons
   ========================================================================== */
.btn {
	background-color: transparent;
	border: 0;
	display: inline-block;
}

	.btn-link {
		@extend %link-styles;
		border-bottom: 1px dotted;
	}




/* ==========================================================================
   $Tooltip
   ========================================================================== */
.tooltip-wrap {
	display: inline-block;
	max-width: 100%;
	position: relative;
}

	/**
	 * 1. Drop-shadow allows the shadow to cover 
	 * 	  everything including the triangle vs box-shadow
	 */
	
	.tooltip {
		background-color: $color-primary;
		display: block;
		filter: drop-shadow(0 2px 8px rgba(black, 0.4)); /* 1 */
		font-size: 14px;
		padding: 1.4em;
		position: absolute;
		bottom: 145%;

		&:before {
			content: '';
			border: 15px solid transparent;
			border-top-color: $color-primary;
			position: absolute;
			left: 2.8em;
			top: 100%
		}

	}

		.tooltip a { color: inherit; }

	.tooltip-in {
		animation:	fade-in 0.20s ease-in-out forwards,
					tooltip-in 0.25s ease-in-out forwards;
	}

	.tooltip-out {
		animation:	fade-in 0.20s ease-in-out forwards reverse,
					tooltip-out 0.25s ease-in-out forwards;
	}




/* ==========================================================================
   $Animations
   ========================================================================== */
@keyframes fade-in {

	from { opacity: 0; }

	to { opacity: 1; }

}

@keyframes tooltip-in {

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

	25% { transform: translateY(-15%); }

	35% { transform: translateY(5%) }

	45% { transform: translateY(-3%); }

	55% { transform: translateY(2%); }

	65% { transform: translateY(-2%); }

	100% { transform: translateY(0); }

}

@keyframes tooltip-out {

	0% { transform: translateY(0); }

	25% { transform: translateY(5%) }

	100% { transform: translateY(100%) }

}
!

JS 

              
                var animEndEventNames = {

	'WebkitAnimation' : 'webkitAnimationEnd',
	'OAnimation' : 'oAnimationEnd',
	'msAnimation' : 'MSAnimationEnd',
	'animation' : 'animationend'

};

var animEndEventName = animEndEventNames[Modernizr.prefixed('animation')];


function initTooltip() {

	var $trigger	= $('[data-tooltip-trigger]'),
		$tooltip	=  $trigger.next('[data-tooltip]');

	// Hide tooltips
	$tooltip.hide();

	$('[data-tooltip-trigger]').on('click', function(e) {

		var self = $(this);

		e.preventDefault();

		if ( !self.hasClass('active') ) {

			self.addClass('active');
			self
				.next()
				.show()
				.addClass('tooltip-in')
				.on(animEndEventName, function() {
					$(this).removeClass('tooltip-in').show();
				});

		} else {

			closeTooltip();

		}

		$('body').on('click', function() {

			if ( !$(event.target).closest($trigger).length ) {

				if ( $trigger.hasClass('active') ) {

					closeTooltip();

				}

			}

		});


	});

	function closeTooltip() {

		$trigger.removeClass('active');
		$tooltip
			.addClass('tooltip-out')
			.on(animEndEventName, function() {
				$(this).removeClass('tooltip-out').hide();
			});

	}

}

initTooltip();
!
999px

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