.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin-bottom: 1rem;
  font-size: 2rem;
  color: #fff;
  border-radius: .75rem;
}

.icon-link {
  display: inline-flex;
  align-items: center;
}
.icon-link > .bi {
  margin-top: .125rem;
  margin-left: .125rem;
  transition: transform .25s ease-in-out;
  fill: currentColor;
}
.icon-link:hover > .bi {
  transform: translate(.25rem);
}