I wonder if someone could suggest what is happening.
A page written in xhtml and utilising CSS fully and working in all browsers. I added a small PHP script to allow the client to directly update a latest news section (obviously changed the file to .php).
The page works correctly in all browsers except firefox where the CSS is misinterpreted on just one of the divs, seriously misaligning the particular block, everything else works well. When the file is changed back to html it again works perfectly.
<div class="leftbox" id="menu1">
<div id="pageNav">
<div id="sectionLinks">
(Menus and lists in this section)
</div></div></div>
The CSS file is external and works fine with everything else, I would be most grateful if anyone has any suggestions