title: min-height with calc function not working
body: <p>I have a bootstrap panel <a href="https://jsfiddle.net/mpsbhat/h3e1uk54/" rel="nofollow">here</a> where myself trying to set the <code>min-height</code> of <code>panel-body</code> class as,</p>
  
  <pre><code>.panel-body {
        min-height: calc(100% - 100px);
      } 
  </code></pre>
  
  <p>Why it is not working in the given fiddle? Is <code>calc</code> function browser dependent?</p>