Sidebar not displaying properly in Opera

Question

Even on my very best days I am absolutely dismal at tracking down browser display issues.

In Opera, the left-hand sidebar on this page ( http://www.taysf.org/about ) is not displaying properly. In every other browser, the sidebar has an orange-stripe-tan-block background, and for a reason I can not fathom that background does not display in Opera.

Do you have any idea why? Will you take pity on me?

Thanks!

Answer 1

An excerpt from your page (whitespace removed):

(...)
<input type="hidden" name="log" id="edit-log" value=""  />
</div>
</div></form>

</div>
</div></form>
<ul class="topnav">
(...)

See that second </div></form>? You have closed one div too many (div#page, to be exact; also, you tried to close a non-existing form). Opera did what you told it to do, closed the div#page, therefore div#content was not inside div#page, thus no background was shown under it. Other browsers saw the mismatched tags and guessed what you had in mind (in this case, successfully).