Links-Rechts

Inhalt

#container1 {
background-color: red;
float: left: !important;
position: absolute;
top: 0; left: 0; bottom: 0; right: 0;
margin: auto;
left: 50%!important;
vertical-align: middle;
}

#centered1 {
color: green;
margin: auto;
position: absolute;
top: 0; left: 0; bottom: 0; right: 0;
}