title: How to include css in html using php
body: <p>I'm including css using php 
  like </p>
  
  <pre><code>&lt;?php include "css/cssnew.css"; ?&gt;
  </code></pre>
  
  <p>But Font Awesome not working, icons showing as squares</p>
  
  <p><strong>css:</strong></p>
  
  <pre><code>@font-face {
      font-family: FontAwesome;
      src: url(/css/fonts/fontawesome-webfont);
      font-weight: 400;
      font-style: normal
  }
  
  .fa {
      display: inline-block;
      font: normal normal normal 14px/1 FontAwesome;
      font-size: inherit;
      text-rendering: auto;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale
  }
  
  .fa-angle-double-up:before {
      content: '\f102';
  }
  </code></pre>
  
  <p>Can anyone please tell me why that fa-angle-double-up:before is not showing </p>
  
  <pre><code>        content: '\f102';
  </code></pre>