Asthetically I liked the Thirteen till I wanted a site's RSS,and an Image of 160 x 223, that all that was in the sidebar. I thought at first the Image being top was pushing it down but I removed it and its still the same.
I love the Twentythirteen, but it needs sorting out in the sidebar, it drops down to the footer.
Other default themes I can have half dozen widgets without the sidebar dropping.
At the moment I am horrified to find my RSS link from another site has dropped to the footer and I only asked for five posts from the RSS as I always do.
I tried reducing the widget font but it makes no difference, I edited the font to "Verdana", still no difference I did that because most people don't have certain fonts on their systems thats in the style sheet..
I don't know what to do now, what theme.