title: Bootstrap grid with something like colspan
body: <p>How do I create this layout with Twitter Bootstrap...</p>
  
  <p><img src="https://i.stack.imgur.com/rkeah.gif" alt="enter image description here"></p>
  
  <p>So that it stacks like this ...</p>
  
  <p><img src="https://i.stack.imgur.com/bL1RG.gif" alt="enter image description here"></p>
  
  <p>I could do the layout as a table (currently it's an image map, but that was a quick and dirty short term solution), but as I understand bootstrap, the table wouldn't know how to stack the cells. I've seen a number of Bootstrap demos that give "rowspan" like functionality, but in this case I need a "colspan" like function. Can Bootstrap do this?</p>