.close {
  @include transition-standard(color);

  appearance: none;
  background-color: transparent;
  background-image: none;
  border: 0;
  color: $close-color;
  float: right;
  font-size: $close-font-size;
  font-weight: $close-font-weight;
  line-height: 1;
  padding: 0;

  @include active-focus-hover {
    color: $close-color-hover;
    text-decoration: none;
  }

  &:focus {
    outline: 0;
  }
}

.close {
  @include transition-standard(color);

  appearance: none;
  background-color: transparent;
  background-image: none;
  border: 0;
  color: $close-color;
  float: right;
  font-size: $close-font-size;
  font-weight: $close-font-weight;
  line-height: 1;
  padding: 0;

  @include active-focus-hover {
    color: $close-color-hover;
    text-decoration: none;
  }

  &:focus {
    outline: 0;
  }

  span {
    vertical-align: text-top;
  }
}

Adjust vertical alignment of close button
Adjust vertical alignment of close button
