stack-middle

<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 stroke="none" d="M0 0h24v24H0z" fill="none" /><path d="M16 10l4 -2l-8 -4l-8 4l4 2" /><path d="M12 12l-4 -2l-4 2l8 4l8 -4l-4 -2l-4 2" fill="currentColor" /><path d="M8 14l-4 2l8 4l8 -4l-4 -2" /></svg>

<i class="ti ti-stack-middle"></i>

ti ti-stack-middle

<i class="ti ti-023709"></i>

ti ti-023709

<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 stroke="none" d="M0 0h24v24H0z" fill="none" /><path d="M16 10l4 -2l-8 -4l-8 4l4 2" /><path d="M12 12l-4 -2l-4 2l8 4l8 -4l-4 -2l-4 2" fill="currentColor" /><path d="M8 14l-4 2l8 4l8 -4l-4 -2" /></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 stroke="none" d="M0 0h24v24H0z" fill="none" /><path d="M16 10l4 -2l-8 -4l-8 4l4 2" /><path d="M12 12l-4 -2l-4 2l8 4l8 -4l-4 -2l-4 2" fill="currentColor" /><path d="M8 14l-4 2l8 4l8 -4l-4 -2" /></svg>

https://cdn.jsdelivr.net/npm/@ticnob/icons@1/icons/stack-middle.svg