Pure CSS3 breadcrumb navigation – the pixel perfect way

Beautiful CSS3 breadcrumb navigation

The problem with most CSS3 based breadcrumbs is that they use border based triangles for the arrows which is awful because:

1. Hover effects are not pixel perfect – hovering on the arrows creates issues because they appear to be triangles but occupy a square region. So hovering/clicking at the edge of a link could trigger the event on the next/previous link actually.

2. You cannot use gradients on borders which means you are stuck with flat colored breadcrumb links.

3. You cannot animate the links along with the arrows using CSS3 transitions.
CSS3 breadcrumb navigation

The solution is to use rotated squares lying half inside the link and half outside giving a triangular shape – not just in appearance but also in functionality.

But positioning rotated squares is a tedious task because the dimensions are all out of control. Hence we apply some math to scale down the rotated squares to occupy the same height as the links so that positioning them becomes easy.

This tutorial also uses CSS Counters to number the breadcrumb links. The first breadcrumb displays the use of gradients for the links whereas the second demo uses flat colors along with transitioned hover effects for the navigation.

HTML

<!-- a simple div with some links -->
<div class="breadcrumb">
	<a href="#" class="active">Browse</a>
	<a href="#">Compare</a>
	<a href="#">Order Confirmation</a>
	<a href="#">Checkout</a>
</div>
<br /><br />
<!-- another version - flat style with animated hover effect -->
<div class="breadcrumb flat">
	<a href="#" class="active">Browse</a>
	<a href="#">Compare</a>
	<a href="#">Order Confirmation</a>
	<a href="#">Checkout</a>
</div>

<!-- Prefixfree -->
<script src="http://thecodeplayer.com/uploads/js/prefixfree-1.0.7.js" type="text/javascript" type="text/javascript"></script>

CSS

/*custom font*/
@import url(http://fonts.googleapis.com/css?family=Merriweather+Sans);

* {margin: 0; padding: 0;}

html, body {min-height: 100%;}

body {
	text-align: center;
	padding-top: 100px;
	background: #689976;
	background: linear-gradient(#689976, #ACDACC);
	font-family: 'Merriweather Sans', arial, verdana;
}

.breadcrumb {
	/*centering*/
	display: inline-block;
	box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.35);
	overflow: hidden;
	border-radius: 5px;
	/*Lets add the numbers for each link using CSS counters. flag is the name of the counter. to be defined using counter-reset in the parent element of the links*/
	counter-reset: flag; 
}

.breadcrumb a {
	text-decoration: none;
	outline: none;
	display: block;
	float: left;
	font-size: 12px;
	line-height: 36px;
	color: white;
	/*need more margin on the left of links to accomodate the numbers*/
	padding: 0 10px 0 60px;
	background: #666;
	background: linear-gradient(#666, #333);
	position: relative;
}
/*since the first link does not have a triangle before it we can reduce the left padding to make it look consistent with other links*/
.breadcrumb a:first-child {
	padding-left: 46px;
	border-radius: 5px 0 0 5px; /*to match with the parent's radius*/
}
.breadcrumb a:first-child:before {
	left: 14px;
}
.breadcrumb a:last-child {
	border-radius: 0 5px 5px 0; /*this was to prevent glitches on hover*/
	padding-right: 20px;
}

/*hover/active styles*/
.breadcrumb a.active, .breadcrumb a:hover{
	background: #333;
	background: linear-gradient(#333, #000);
}
.breadcrumb a.active:after, .breadcrumb a:hover:after {
	background: #333;
	background: linear-gradient(135deg, #333, #000);
}

/*adding the arrows for the breadcrumbs using rotated pseudo elements*/
.breadcrumb a:after {
	content: '';
	position: absolute;
	top: 0; 
	right: -18px; /*half of square's length*/
	/*same dimension as the line-height of .breadcrumb a */
	width: 36px; 
	height: 36px;
	/*as you see the rotated square takes a larger height. which makes it tough to position it properly. So we are going to scale it down so that the diagonals become equal to the line-height of the link. We scale it to 70.7% because if square's: 
	length = 1; diagonal = (1^2 + 1^2)^0.5 = 1.414 (pythagoras theorem)
	if diagonal required = 1; length = 1/1.414 = 0.707*/
	transform: scale(0.707) rotate(45deg);
	/*we need to prevent the arrows from getting buried under the next link*/
	z-index: 1;
	/*background same as links but the gradient will be rotated to compensate with the transform applied*/
	background: #666;
	background: linear-gradient(135deg, #666, #333);
	/*stylish arrow design using box shadow*/
	box-shadow: 
		2px -2px 0 2px rgba(0, 0, 0, 0.4), 
		3px -3px 0 2px rgba(255, 255, 255, 0.1);
	/*
		5px - for rounded arrows and 
		50px - to prevent hover glitches on the border created using shadows*/
	border-radius: 0 5px 0 50px;
}
/*we dont need an arrow after the last link*/
.breadcrumb a:last-child:after {
	content: none;
}
/*we will use the :before element to show numbers*/
.breadcrumb a:before {
	content: counter(flag);
	counter-increment: flag;
	/*some styles now*/
	border-radius: 100%;
	width: 20px;
	height: 20px;
	line-height: 20px;
	margin: 8px 0;
	position: absolute;
	top: 0;
	left: 30px;
	background: #444;
	background: linear-gradient(#444, #222);
	font-weight: bold;
}

.flat a, .flat a:after {
	background: white;
	color: black;
	transition: all 0.5s;
}
.flat a:before {
	background: white;
	box-shadow: 0 0 0 1px #ccc;
}
.flat a:hover, .flat a.active, 
.flat a:hover:after, .flat a.active:after{
	background: #9EEB62;
}

SEE THE DEMO & WALKTHROUGH

Divi WordPress Theme

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