SVG inline

Simply copy/paste this into your HTML:

<svg class="humbleicons hi-corner-down-right" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24"><path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 5v6.5a3 3 0 0 0 3 3h12M16.5 18l3.5-3.5-3.5-3.5"/></svg>

SVG sprite

Download the sprite file and address the icon by its slug:

<svg class="humbleicons"><use xlink:href="humbleicons.svg#corner-down-right"/></svg>