title: Element UI Button block
body: <p>I'm starting a vue js project and I decided to use <a href="http://element.eleme.io/#/en-US/component/button" rel="nofollow noreferrer">Element UI</a> which seams pretty nice.</p>
  
  <p>The problem is I can't find in their documentation how to make a block button, which has the same width as the column where it is placed.</p>
  
  <p>I would appreciate if you can point this out. Thank you!</p>