CSS:
* ( margin: 0; padding: 0; ) #page(display:table;overflow:hidden;margin:0px auto;) *:first-child+html #page (position:relative;)/*ie7*/ * html #page(position:relative;)/*ie6*/ #content_container(display:table-cell;vertical-align: middle;) *:first-child+html #content_container(position:absolute;top:50%;)/*ie7*/ * html #content_container(position:absolute;top:50%;)/*ie6*/ *:first-child+html #content(position:relative;top:-50%;)/*ie7*/ * html #content(position:relative;top:-50%;)/*ie6*/ html,body(height:100%;) #page(height:100%;width:465px;)HTML:
your content