rb, line 159</span>&#x000A;159:   <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">include_css</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>)&#x000A;160:     <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">args</span>.<span class="ruby-identifier">blank?</span>&#x000A;161: &#x000A;162:     <span class="ruby-identifier">initialize_html_cache</span> <span class="ruby-identifier">:css<