html,body{
	height:100%
}

#main-content{
	min-height: 100%;
	height: auto !important; /* This line and the next line are not necessary unless you need IE6 support */
	height: 100%;
	margin: 0 auto -235px; /* the bottom margin is the negative value of the footer's height */
}


#footer, .push {
	height: 235px; /* .push must be the same height as .footer */
}