title: Using CSS to align a button bottom of the screen using relative positions
body: <p>I need to position a button to the bottom of the screen. I need to use relative size and not absolute sizes, so it fits any screen size.</p>
  
  <p>my CSS code:</p>
  
  <pre><code>position:relative;
  left:20%;
  right:20%;
  bottom:5%;
  top:60%;
  </code></pre>