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   1  /**
   2   * JavaScript to show jump links to motor-impaired users when they are focused.
   3   */
   4  jQuery( function ( $ ) {
   5  
   6      $( '.mw-jump' ).on( 'focus blur', 'a', function ( e ) {
   7          // Confusingly jQuery leaves e.type as focusout for delegated blur events
   8          if ( e.type === 'blur' || e.type === 'focusout' ) {
   9              $( this ).closest( '.mw-jump' ).css( { height: 0 } );
  10          } else {
  11              $( this ).closest( '.mw-jump' ).css( { height: 'auto' } );
  12          }
  13      } );
  14  
  15  } );