Practice/_src/mobile/scss/common/_utility.scss

/***************************************************************************************
 * 유틸리티
 ****************************************************************************************/
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;

  &.sr-only-focusable {
    &:active,
    &:focus {
      position: static;
      width: auto;
      height: auto;
      overflow: visible;
      clip: auto;
      white-space: normal;
    }
  }
}

.clearfix {
  &,
  &:before,
  &:after {
    @include clear-fix();
  }
}