bootstrap-icons/icons/border-style.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-border-style" viewBox="0 0 16 16">
  <path d="M1 3.5a.5.5 0 0 1 .5-.5h13a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-13a.5.5 0 0 1-.5-.5zm0 4a.5.5 0 0 1 .5-.5h5a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-5a.5.5 0 0 1-.5-.5zm0 4a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5zm8 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5zm-4 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5zm8 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5zm-4-4a.5.5 0 0 1 .5-.5h5a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-5a.5.5 0 0 1-.5-.5z"/>
</svg>