I created a left sidebar in the mod twenty ten theme im using. I would like that left sidebar be alligned with the header. (now left sidebar start under the header). So the left sidebar should go to the top border of the site.
Any ideas how to do this in CSS? ive been already looking around but could not find any crossbrowser solution yet.
I’m sorry but it is beyond the scope of these forums to deal with basic CSS issues. Try a dedicated CSS resource such as http://www.css-discuss.org/ instead. In the meantime, using Firefox with the Firebug add-on for this kind of CSS work. http://getfirebug.com/