Is your theme switcher too wide, has it only recently become too wide, is your sidebar wider than usual and you don't know what's wrong? Have you recently installed the SFII theme? You may not realise but the theme switcher is the plugin that is making your sidebar wider than usual. You see most of the traditional themes had short names, but this probably won't be the norm in the future. More and more themes are being designed and s9y theme designers are likely to want to add a little more detail to their theme names, perhaps even a short description.
The problem now and in the future is going to be ensuring that theme designers specifiy the width for select boxes within the sidebar so that the theme switcher doesn't ruin the whole design by expanding the width of the sidebar, or worse, flicking it down to the bottom of the page.
If your blog is facing this problem, it is easily fixed if you're willing to dabble with your stylesheet.
The theme switcher uses a dropdown box to select the theme to be switched to, and the HTML tag is actually the
<select> tag. Nothing wrong with that, it is as you'd expect, however most of the themes don't include any reference to styling the select tag, which means when you have a theme name that is longer than the width of the sidebar you get problems.
What we need to do is this;
.serendipitySideBarContent select {
width:150px;
}
An alternative, which has since become my favourite method, is to specify a percentage instead. I found that every theme uses a different sidebar width and I am/was going through the process of updating the themes on
my themes site and needed something I could paste into every theme and know that it would work without having to determine the sidebar width beforehand.
.serendipitySideBarContent select {
width:90%;
}
Simply including that small piece of code at the end of your stylesheet will fix the problem you are experiencing. If 150 pixels or 90% is too narrow or still too wide, go ahead and adjust this figure.