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<a href="#openModal">Open Modal</a>
<div id="openModal" class="modalDialog">
<div><a href="#close" title="Close" class="close">X</a>
<h2>Modal Box</h2>
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</div>
</div>
.modalDialog {
position: fixed;
font-family: Arial, Helvetica, sans-serif;
color: #FFF;
top: 0;
right: 0;
bottom: 0;
left: 0;
background: rgba(0, 0, 0, 0.4);
z-index: 99999;
opacity: 0;
-webkit-transition: opacity 400ms ease-in;
-moz-transition: opacity 400ms ease-in;
transition: opacity 400ms ease-in;
pointer-events: none;
}
.modalDialog:target {
opacity: 1;
pointer-events: auto;
}
.modalDialog > div {
width: 60%;
position: relative;
margin: 10% auto;
padding: 5px 20px 13px 20px;
background: #000;
}
.close {
color: #CCC;
font-size: 30px;
line-height: 25px;
position: absolute;
right: -12px;
text-align: center;
top: -10px;
width: 24px;
text-decoration: none;
font-weight: bold;
-webkit-border-radius: 12px;
-moz-border-radius: 12px;
border-radius: 12px;
}
.close:hover {
color: #000;
}
Also see: Tab Triggers