span class="nt">&lt;meta</span> <span class="na">name=</span><span class="s">"viewport"</span> <span class="na">content=</span><span class="s">"width=device-width, initial-scale=1"</span><span class="nt">&gt;</span>
  <span class="nt">&lt;/head&gt;</span>

  <span class="nt">&lt;input</span> <span class="na">id=</span><span class="s">"hex"</span> <span class="na">placeholder=</span><span class="s">"enter hex color"</span><span class="nt">&gt;&lt;/input&gt;</span>
  <span class="nt">&lt;canvas</span> <span c