Chrome 39 bug?

by Walter Schwarz

HTML

<section>
    <span>
        Test
        <div></div>
    </span>
</section>

CSS

body{
    padding: 20px;
}
section{
    width: 200px;
    text-align: center;
    background-color: grey;
}
span{
    position: relative;
    background-color: rgba(0, 255, 0, 00.5);
    /*display: inline-block; activating this makes it work as expected again */
}
div{
    position: absolute; /*switching this on and off via the developer tools has weird behaviour*/
    width: 100%;
    height: 3px;
    background-color: red;
}