Column shrinks when contents are more than one page

[mondele]

Hello,

I have a usual two column layout. Just two simple DIVs side by side. For some reason whenever the page contents expand past the bottom of the screen the width of the side menu shrinks by 1 pixel.

This is only happening in FF and Opera. IE has no issue.

I have completely stripped it down to isolate the problem but have been unable. Here is the stripped down css, as its as simple as it gets at this point, I'm guessing its something I'm missing, not something I've already put in.

-------------

div.menu {
float: left;
width: 15%;
background: #4088EE;
}

div.contentpane {
float: left;
width: 85%;
}

--------

Any help would be appreciated, thanks!

[swa66]

Welcome to WebmasterWorld! [webmasterworld.com]

Might be related to your flexible width and the rendering of a scroll bar making the viewport a bit smaller?