.arrow-mark {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.arrow-mark::after {
  content: "";
  position: absolute;
  right: -2px;
  bottom: 7px;
  width: 21px;
  border-top: 1.5px solid currentColor;
  transform: rotate(45deg);
  transform-origin: right center;
}