Example: CSS

#tagged, .tag a {
	color: #3B3F42;
	-webkit-transition: all .1s ease-in;
	-moz-transition: all .1s ease-in;
	-o-transition: all .1s ease-in;
	-ms-transition: all .1s ease-in;
	transition: all .1s ease-in;
}
a:hover {
	color: #3B3F42;
	width: 100%;
	text-decoration: underline;
	border-bottom: 3px solid #35ab43;
	font-size: 2em;
	background: #444444 url(images/background.png) no-repeat top left;
	background: #444444 url("images/background.png") no-repeat top left;
}
a:focus {
	color: #3B3F42;
	font-size: 2.5em;
	border: 1px solid #aaa;
}
div:first-child {
	color: #3B3F42;
}