 <code>type</code> attributes for style sheets and scripts.</p>

<p>Do not use <code>type</code> attributes for style sheets (unless not using CSS) and scripts
(unless not using JavaScript).</p>

<p>Specifying <code>type</code> attributes in these contexts is not necessary as HTML5 implies
<a href="https://html.spec.whatwg.org/multipage/obsolete.html#attr-style-type"><code>text/css</code></a>
and
<a href="https://html.spec.whatwg.org/multipage/scripting.html#attr-script-type"><code>text/javascript</code></a