title: Pass a value from HTML to CSS
body: <p>I was interested whether can I pass value to the css class from the html?
  Like this
  Example: </p>
  
  <pre><code>&lt;div class="mt(5)"&gt; Some text &lt;/div&gt;
  style {
   .mt(@mpx) {
     margin-top: @mpx px;
   }
  }
  </code></pre>
  
  <p>I've heard that such way was possible in Less</p>