title: How to wrap a sideways text in a column (tabular)
body: <p>Let's say we have a table  </p>
  
  <pre><code>\begin{tabular}{|c|c|}
  \begin{sideways}A\end{sideways}&amp;\begin{sideways}B\end{sideways}\\\  
  a &amp; b \\\  
  \end{tabular}
  </code></pre>
  
  <p>How can I define the height of cells <code>A</code> and <code>B</code>, so that in case of <code>A</code> and <code>B</code> being a longer caption, the text will wrap-around the cell?<br>
  Putting <code>p{x pt}</code> in the tabular environment's table specs doesn't seem to do the trick..  </p>