is “word-wrap” supported?

by David Storey

HTML

<p id="normal">xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</p>
<p id="break-word">xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</p>

CSS

p {
    width: 12em;
    border: 1px solid red;
}

#normal {
    word-wrap: normal;
}

#break-word {
    word-wrap: break-word;
}