title: What exactly is offset in bootstrap?
body: <p>I do understand what is grid, basically one whole row will have 12 spaces. </p>
  
  <pre><code>&lt;div class="row"&gt;
      &lt;div class="col-md-4"&gt;&lt;/div&gt;
      &lt;div class="col-md-4"&gt;&lt;/div&gt;
      &lt;div class="col-md-4"&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Basically what the code above is just dividing the spaces into 3 section but what I don't understand is, whats the point of setting offset?</p>
  
  <pre><code>&lt;div class="col-lg-6 col-md-offset-3"&gt;&lt;/div&gt;
  </code></pre>