title: Bootstrap combining rows (rowspan)
body: <p>I am testing <a href="http://twitter.github.io/bootstrap/" rel="noreferrer">Twitter Bootstrap</a> and got stuck with
  basic scaffolding with rows. I revisited their documentation number of times and I can see nesting columns where you can basically nest columns within a column but I cannot locate 
  the capability of combining rows into one and have it aligned with column next to the uncombined rows. </p>
  
  <p>Below picture should illustrate what I want to accomplish.</p>
  
  <p><img src="https://i.stack.imgur.com/uh1ga.png" alt="rowspan layout sample"></p>
  
  <p>The only workaround solution I came across is using tables but I don't like this idea
  as my view is that the responsiveness wouldn't work with the use of tables. </p>
  
  <p>Does anyone have any elegant solution to this?
  Most of the web layout I do will need fine level of flexibility so it will be great if I could pick up something useful here.</p>