Equal height columns

by robdodson

HTML

<div id="container">
    <div id="first">
        <p>Foobar</p>
        <p>Foobar</p>
        <p>Foobar</p>
    </div>
    <div id="second">
        <p>Baz</p>
    </div>
</div>
<div id="subcontainer">Hello World!</div>

CSS

#container {
    width: 100px;
    border: 1px solid #000;
    position: relative;
}

#first {
    width: 50px;
    height: 100%;
    background-color: #F00;
}

#second {
    width: 50px;
    height: 100%;
    background-color: #0F0;
    position: absolute;
    top: 0;
    left: 50px;
}

#second p {
    position: relative;
    top: 30px;
}

#subcontainer {
    width: 100px;
    height: 100px;
    background-color: #00F;
    color: white;
    border: 1px solid orange;
}