Simplest 2-Axis Centering Ever

This can be used to make the easiest and simplest modal you will ever use.

by Travis Almand

HTML

<div id='outer'>
    <div id='inner'>this is centered horizontally and vertically with a 50% height and width</div>
</div>

CSS

#outer {
    border: 1px solid black;
    height: 200px;
    margin: auto;
    position: relative;
    width: 50%;
}

#inner {
    background-color: gainsboro;
    bottom: 0;
    height: 50%;
    left: 0;
    margin: auto;
    padding: 10px;
    position: absolute;
    right: 0;
    top: 0;
    width: 50%;
}