title: DIV Filling Remaining Width of Container Which has Width 100%
body: <p>I've been searching all morning and I can't find a solution to my specific problem.  I have a layout where I have a left column that is set to about 50px and a right column that is set to take up the remaining 100% of the page.  This part works.  </p>
  
  <p>Now, in the right column, I have another 2 column layout.  But since the container's width is 100%, my inner right column keeps expanding past it's parent.  I need it to simply fill the remaining space, similar to the parent layout.  I've created a jsFiddle with my example code.</p>
  
  <p><a href="http://jsfiddle.net/87nb2/1/" rel="nofollow">http://jsfiddle.net/87nb2/1/</a></p>
  
  <p>As you can see, the green 'gallery' section is going past the right side of it's parent.  This is the problem I'm trying to solve.</p>