Text overflowing the sides of its container div
This will wrap your text within the div, even if your string is unbroken (which is what I assume you mean).
.wordwrap {
white-space: pre-wrap; /* Webkit */
white-space: -moz-pre-wrap; /* Firefox */
white-space: -pre-wrap; /* Opera <7 */
white-space: -o-pre-wrap; /* Opera 7 */
word-wrap: break-word; /* IE */
}