title: -webkit-line-clamp css not affecting in mozilla firefox
body: <p>Hi i have added css to show only particular no of lines but it is not affecting in Mozilla Firefox. Here is the css</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
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  <pre class="snippet-code-css lang-css prettyprint-override"><code>p.teknotrait1 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    line-height: 20px;
    -webkit-line-clamp: 7 !important;
    -webkit-box-orient: vertical;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;p class="teknotrait1"&gt;Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has
    survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing
    software like Aldus PageMaker including versions of Lorem Ipsum.&lt;/p&gt;</code></pre>
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