body {
	margin: 0;
	padding: 0;
}

img {
	border: 0;
}

.clearer {
	clear: both;
}

.hide {
	display: none;
}

.show {
	display: block;
}

a {
	outline: none;
}

a.rollover {
	background-position: left top;
}

a.rollover:hover {
	background-position: right bottom;
}