midi-player-js/demo/bower_components/bootstrap/less/mixins/tab-focus.less

Midi parser & player engine for browser or Node. Works well with single or multitrack MIDI files.

// WebKit-style focus

.tab-focus() {
  // Default
  outline: thin dotted;
  // WebKit
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}