umbered">Capitalization</h4>

<p>Use only lowercase.</p>

<p>All code has to be lowercase: This applies to HTML element names, attributes,
attribute values (unless <code>text/CDATA</code>), CSS selectors, properties, and property
values (with the exception of strings).</p>

<pre><code class="language-html bad">&lt;!-- Not recommended --&gt;
&lt;A HREF="/"&gt;Home&lt;/A&gt;
</code></pre>

<pre><code class="language-html good">&lt;!-- Recommended --&gt;
&lt;img src="google.png" alt="Google"&gt;
</code></pre>
