Generic link transition

generic_anchor_transition.css

A {
	-moz-transition: all .2s ease-in-out .2s;
	-webkit-transition: all .2s ease-in-out .2s;
	-ms-transition: all .2s ease-in-out .2s;
	-o-transition: all .2s ease-in-out .2s;
	transition: all .2s ease-in-out .2s;
}

A:hover {
	color: #006699;
}

overlay_content.css

.hover_box, .hover_box_content {
	display: block;
	width: 300px;
	height: 220px;
	background: #fff;
}

.hover_box {
	background: url('bg.png');
	border-radius: 8px;
}

.hover_box_content {
	border-radius: 7px; /* Slightly smaller border radius to avoid corner gaps */
	opacity: 0; /* Start with the content hidden */
	text-decoration: none;

	/* Our transitions */
	-moz-transition: all .3s ease-in-out .2s;
	-webkit-transition: all .3s ease-in-out .2s;
	-ms-transition: all .3s ease-in-out .2s;
	-o-transition: all .3s ease-in-out .2s;
	transition: all .3s ease-in-out .2s;
}

.hover_box_content:hover {
	opacity: 0.85; /* Show the content */
}


.hover_box h1, .hover_box P {
	color: #000;
}

.hover_box h1 {
	font-size: 1.2em;
	padding: 10px 20px;
}

.hover_box P {
	font-size: 0.8em;
	padding: 0px 20px;
	padding-bottom: 10px;
}

overlay_content.html

<div class="hover_box"><!-- This will hold our image as a background -->
	<a href="#" class="hover_box_content"><!-- The content container -->
		<h1>Content!</h1>
		<p>What a fantastic effect! Lorel ipsum dolor sit amet!</p>
	</a>
</div>