There seem to be two issues here:
- The HTML for you question seems to be invalid. Notice how the blue block closes before the big table. It looks like you have some stray </div> tags in your question, or something. Anyway, the first thing you should to is to ensure that the HTML code for you question is properly structured. (Do view source in the HTML editor. I hope you have a basic understanding of HTML, or this advice is going to be meaningless.)
- The question seems to be a big table containing big input boxes. Therefore, there is no sensible way for it to get line-wrapped. What is causing those huge empty boxes that are extending off-screen to the right? You will need to find a way to reformulate that bit of the question.