h</span><span class="token punctuation">:</span> 800px<span class="token punctuation">;</span>
  <span class="token property">margin</span><span class="token punctuation">:</span> auto<span class="token punctuation">;</span>
  <span class="token property">padding</span><span class="token punctuation">:</span> 2em<span class="token punctuation">;</span>
  <span class="token property">font-family</span><span class="token punctuation">:</span> sans-serif<span class="token punctuation">;</span>
  <span class="t