Centered div

by kevinPHPkevin

HTML

<div id="centered"></div>

Source: http://www.w3.org/TR/CSS2/visuren.html#position-props

CSS

#centered {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    height: 100px;
    width: 300px;
    margin: auto;
    background-color: grey;
}