{
	margin: 0;
}
html, body {
	height: 100%;
}
.wrapper {
	min-height: 100%;
	height: auto !important;
	height: 100%; /* the bottom margin is the negative value of the footer's height */
	margin-top: 0;
	margin-right: auto;
	margin-left: auto;
	margin-bottom: -150px;
}
.footer, .push {
	height: 150px;
}