 <p>use the <code>container</code> class</p> <pre><code>&lt;div class ="container"&gt; &lt;div class = "header_site"&gt; &lt;h1&gt;&lt;span class = "header"&gt;ABC Company&lt;/span&gt;&lt;/h1&gt; &lt;/div&gt; &lt;/div&gt; </code></pre>