title: positioning a div right and left simultaneously
body: <p>i'm trying to make a div have a width using the absolute positioning and it work fine in google chrome but in fierfox it doesnt. why is there a conflict ? i tried the exact same code in both browser and on fierfox doesnt reconize it.</p>
  
  <pre><code>   &lt;!DOCTYPE HTML&gt;
  &lt;html &gt;
      &lt;head&gt;
          &lt;meta charset="utf-8"/&gt;
          &lt;title&gt;Kelma&lt;/title&gt;
          &lt;link rel="stylesheet" href="style.css" /&gt;
      &lt;/head&gt;
      &lt;body&gt;
  
              &lt;input type="text" id="center" /&gt;
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>and this is the css file</p>
  
  <pre><code>#center{
      position: absolute;
      left:50px;
      right: 50px;
  }
  </code></pre>