title: How to center slider in css?
body: <p>I installed this plugin on a theme. This theme had a slider, but I didn't like it. So I installed this one.</p>
  
  <p><a href="http://wordpress.org/extend/plugins/content-slide/" rel="nofollow">http://wordpress.org/extend/plugins/content-slide/</a></p>
  
  <p>I tried using this </p>
  
  <pre><code>#wpcontent_slider_container{
  position:relative;
  margin: 0 auto;
  }
  </code></pre>
  
  <p>And this</p>
  
  <pre><code>#wpcontent_slider_container{
  position:relative;
  margin-left:auto;
  margin-right:auto;
  }
  </code></pre>
  
  <p>And nothing happens. </p>
  
  <p>Do I have to put something in div?</p>