boxicons/svg/solid/bxs-heart-square.svg

<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M4 21h16a1 1 0 0 0 1-1V4a1 1 0 0 0-1-1H4a1 1 0 0 0-1 1v16a1 1 0 0 0 1 1zM7.812 8.907a2.746 2.746 0 0 1 3.907 0l.279.279.278-.279a2.746 2.746 0 0 1 3.907 0 2.745 2.745 0 0 1 0 3.907L11.998 17l-4.187-4.186a2.747 2.747 0 0 1 .001-3.907z"/></svg>