The space in your css id is causeing the problem...
Would be defining an html element called "content" within an element with the id=main.
Unless you had something like
<div id="main"><content>your content here</content></div>
In your html, it can't display anything. <content> isn't an html tag, so it won't work.
If you changed it to
Your html would look like...
<div id="main" class="content">your content here</div>
And your width should show correctly now.
You can't use spaces in selector names.
Change #main content to #main_content or #MainContent or #main-content (without spaces). Do the same with your HTML id.
some content here....
Ok. Thank you all soooooo very much! I am so happy I could cry right now! Still learning this and was beyond frustrated!! :-D