.button-primary .diagonal-arrow {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.button-primary .diagonal-arrow::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 2px;
  width: 15px;
  height: 2px;
  background: currentColor;
  transform-origin: left center;
  transform: rotate(45deg);
}

.button-primary .diagonal-arrow::after {
  content: "";
  position: absolute;
  right: 1px;
  bottom: 1px;
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

@media (max-width: 620px) {
  .button-primary .diagonal-arrow {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
  }

  .button-primary .diagonal-arrow::before {
    width: 17px;
  }

  .button-primary .diagonal-arrow::after {
    width: 8px;
    height: 8px;
  }
}