ghost/core/client/assets/sass/helpers/mixins.scss

//
// Styles
// --------------------------------------------------

@mixin baseline {
    margin: 1.6em 0;
}

// User select
// For selecting text on the page

@mixin user-select($select) {
  -webkit-user-select: $select;
     -moz-user-select: $select;
      -ms-user-select: $select; // IE10+
          user-select: $select;
}

// WebKit-style focus

@mixin tab-focus() {
  // Default
  outline: thin dotted;
  // WebKit
  outline: 0px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}