CardBox Heading CSS Snippet

In this article, we'll create a card/box header with beautiful CSS shapes.

HTML

<div class="box">
	<h2 class="ribbon blue bottom">Awesome Title!</h2>
	<h3>Normal Heading</h2>
	<h2 class="ribbon blue top">Another Awesome Title!</h2>
	<h3>Triangle to up</h2>
	<h2 class="ribbon blue crossed">Another Awesome Title!</h2>
	<h3>Triangle to up and down</h2>
	<h2 class="ribbon expand"><span>Awesome title here!</span></h2>
	<h3>Triangle to both side</h2>
	<h2 class="ribbon red-gradient">Awesome Title Here!</h2>
	<h3>Background gradient</h2>
</div>

CSS

.box {
	position: relative;
	margin: 0 auto;
	background: #FFF;
	max-width: 500px;
}
.ribbon {
	background: #2D5699;
	color: #FFF;
	padding: 18px;
	text-align: center;
	margin-left: -20px;
	margin-right: -20px;
	/*border-radius: 3px 3px 0 0;*/
	position: relative;
}
.ribbon:before, .ribbon:after {
	width: 0;
	height: 0;
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	content: "";
	top: 100%;
}
.ribbon.red-gradient {
	background: rgb(234,67,53); /* Old browsers */
	background: -moz-linear-gradient(top, rgba(234,67,53,1) 0%, rgba(178,0,0,1) 100%, rgba(125,185,232,1) 100%); /* FF3.6-15 */
	background: -webkit-linear-gradient(top, rgba(234,67,53,1) 0%,rgba(178,0,0,1) 100%,rgba(125,185,232,1) 100%); /* Chrome10-25,Safari5.1-6 */
	background: linear-gradient(to bottom, rgba(234,67,53,1) 0%,rgba(178,0,0,1) 100%,rgba(125,185,232,1) 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ea4335', endColorstr='#7db9e8',GradientType=0 ); /* IE6-9 */
}
.ribbon.red-gradient:before {
	border-top: 20px solid #861F1A;
	border-left: 20px solid transparent;
	left: 0;
}
.ribbon.red-gradient:after {
	border-top: 20px solid #861F1A;
	border-right: 20px solid transparent;
	left: calc(100% - 20px);
}
.ribbon.blue {
	background: #4285F4;
}
.ribbon.blue.top:before{
	top: -20px;
	left: 0;
	border-bottom: 20px solid #2D5699;
	border-left: 20px solid transparent;
}
.ribbon.blue.top:after{
	top: -20px;
	left: calc(100% - 20px);
	border-bottom: 20px solid #2D5699;
	border-right: 20px solid transparent;
}
.ribbon.blue.bottom:before{
	border-top: 20px solid #2D5699;
	border-left: 20px solid transparent;
	left: 0;
}
.ribbon.blue.bottom:after{
	border-top: 20px solid #2D5699;
	border-right: 20px solid transparent;
	left: calc(100% - 20px);
}
.ribbon.blue.crossed:before{
	top: -20px;
	left: 0;
	border-bottom: 20px solid #2D5699;
	border-left: 20px solid transparent;
}
.ribbon.blue.crossed:after{
	border-top: 20px solid #2D5699;
	border-right: 20px solid transparent;
	left: calc(100% - 20px);
}
.ribbon.expand {
	position: relative;
	padding: 0;
	background: #4285F4;
}
.ribbon.expand:after {
	border-top: 20px solid #2D5699;
	border-right: 20px solid transparent;
	left: calc(100% - 20px);
}
.ribbon.expand:before{
	border-top: 20px solid #2D5699;
	border-left: 20px solid transparent;
	left: 0;
}
.ribbon.expand span {
	position: relative;
	padding: 18px 0;
	display: inline-block;
	top: 0;
	left: 0;
	height: 100%;
	width: 100%;
}
.ribbon.expand span:before, .ribbon.expand span:after {
	width: 0;
	height: 0;
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	content: "";
	top: 100%;
}
.ribbon.expand span:after {
	top: -20px;
	left: calc(100% - 20px);
	border-bottom: 20px solid #2D5699;
	border-right: 20px solid transparent;
}
.ribbon.expand span:before{
	border-bottom: 20px solid #2D5699;
	border-left: 20px solid transparent;
	left: 0;
	top: -20px;
}