assets/stylesheets/mixins/_screen-reader.scss

// ---
// version: 2
// ---

// Only display content to screen readers
// See: http://a11yproject.com/posts/how-to-hide-content/

@mixin sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  white-space: nowrap;
}