Word Wrap in css breakwords using css divs and using truncate function of zencart

Hi
if there is long word (with no space) it will cause the layout of the site look ockward use the css style mentioned below to solve this issue
position:relative;margin-top:10px; width:600px; overflow:hidden; word-wrap:break-word;

Zencart truncate function zen_trunc_string($stores->fields['pages_html_text'],400)