我可以在一个三角形的div中放置一个字体很棒的图标吗？

<div class="triangle"></div>

.triangle {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 100px 100px 100px;
  border-color: transparent transparent #000000 transparent;
  transform: rotate(45deg);
}

.triangle:before {
  content: "";
  display: block;
  position: absolute;
  top: -100px;
  left: -100px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 100px 100px 100px;
  border-color: transparent transparent #000000 transparent;
  transform: rotate(45deg);
}

.icon {
  font-family: "Font Awesome";
  font-size: 24px;
  color: #000000;
}