How to wrap long lines without spaces in HTML?

Question

If a user types in a long line without any spaces or white space, it will break formating by going wider than the current element. Something like:

HA

Answer 1

Here's what I do in ASP.NET:

1. Split the text field on spaces to get all the words
2. Iterate the words looking for words that are longer than a certain amount
3. Insert every x characters (e.g. every 25 characters.)

I looked at other CSS based ways of doing this, but didn't find anything that worked cross-browser.