fold-vertical

<svg
  xmlns="http://www.w3.org/2000/svg"
  width="24"
  height="24"
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  stroke-width="2"
  stroke-linecap="round"
  stroke-linejoin="round"
><path d="M12 22v-6" /><path d="M12 8V2" /><path d="M4 12H2" /><path d="M10 12H8" /><path d="M16 12h-2" /><path d="M22 12h-2" /><path d="m15 19-3-3-3 3" /><path d="m15 5-3 3-3-3" /></svg>

<i class="ti ti-fold-vertical"></i>

ti ti-fold-vertical

<i class="ti ti-011635"></i>

ti ti-011635

<svg
  xmlns="http://www.w3.org/2000/svg"
  width="24"
  height="24"
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  stroke-width="2"
  stroke-linecap="round"
  stroke-linejoin="round"
><path d="M12 22v-6" /><path d="M12 8V2" /><path d="M4 12H2" /><path d="M10 12H8" /><path d="M16 12h-2" /><path d="M22 12h-2" /><path d="m15 19-3-3-3 3" /><path d="m15 5-3 3-3-3" /></svg>

<svg
  xmlns="http://www.w3.org/2000/svg"
  width="24"
  height="24"
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  stroke-width="2"
  stroke-linecap="round"
  stroke-linejoin="round"
><path d="M12 22v-6" /><path d="M12 8V2" /><path d="M4 12H2" /><path d="M10 12H8" /><path d="M16 12h-2" /><path d="M22 12h-2" /><path d="m15 19-3-3-3 3" /><path d="m15 5-3 3-3-3" /></svg>

https://cdn.jsdelivr.net/npm/@ticnob/icons@1/icons/fold-vertical.svg