y prefixed transistion</p>

            </div>
            
            <div class="content"><div class='highlight'><pre><span class="hljs-at_rule">@<span class="hljs-keyword">mixin</span><span class="hljs-preprocessor"> transition</span> ($property:<span class="hljs-preprocessor"> 0.15s</span>) {</span>
  $valid<span class="hljs-value">: false;</span>
  <span class="hljs-at_rule">@<span class="hljs-keyword">if</span><span class="hljs-preprocessor"> type-of</span>($property) == <span class="hljs-string">"st