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Without seeing the actual code, this is a complete guess. This feels like a float issue to me. You said that the elements sat side by side at one point and now one falls below the other. I also noticed in the screenshot it looks like one is floating left while the other is floating right. Can you use Firebug to confirm there is enough width for both elements to sit side by side? You may need to either reduce the width of the buttons, remove some padding or margin (if any) or increase the width of the parent container (I’m guessing a list item “li")