Icon of Underline

<?xml version="1.0" encoding="utf-8"?><!-- Uploaded to: SVG Repo, www.svgrepo.com, Generator: SVG Repo Mixer Tools -->
<svg width="800px" height="800px" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M4 21H20M18 4V11C18 14.3137 15.3137 17 12 17C8.68629 17 6 14.3137 6 11V4M4 3H8M16 3H20" stroke="#000000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
</svg>