-sizing-placeholder-html-tab">

                    <pre><code class="language-markup"> <span class="token comment">&lt;!-- sizing --&gt;</span>
                        <span class="token tag"><span class="token tag"><span
                              class="token punctuation">&lt;</span>span</span> <span
                            class="token attr-name">class</span><span class="token attr-value"><span
                              class="token punctuation attr-equals">=</span><span
                     