 class="numbered">Leading 0s</h4>

<p>Always include leading “0”s in values.</p>

<p>Put <code>0</code>s in front of values or lengths between -1 and 1.</p>

<pre><code class="language-css good">font-size: 0.8em;
</code></pre>

<h4 id="Hexadecimal_Notation" class="numbered">Hexadecimal Notation</h4>

<p>Use 3 character hexadecimal notation where possible.</p>

<p>For color values that permit it, 3 character hexadecimal notation is shorter and
more succinct.</p>

<pre><code class="language-css bad">/* No