Style sheet- what does 'main panel' affect?

[Brewhaus]

We have found that when a customer views their order, the sidebar on the right was getting squeezed to almost nothing because the 'main panel' width in our style.css sheet was set to 100%. Changing it to 80% appears to resolve the issue, and having looked at our pages it does not seem to have altered anything else. Can anyone confirm what this setting may affect so that we can make sure that everything still displays properly? We may well have missed checking out something.

[jmestep]

When I view your category pages the sort header is pushed to the right and does not display all the way across the main panel.

[Brewhaus]

That was changed intentionally a little while back, because we are adding logos for many of the categories (especially the individual brands), and were getting overlapping.

I could not find anything that changed aside from the final copy of the order after it was placed, so I wondered if anyone knew what else this setting affected.

[dappy2]

The mainpanel is just the div that wraps the... well - main panel - basically the center column of the standard 3 column layout.

Sometimes if a table is wider (with content) than the div it will push outside of the boundaries of that div.