a { color: #000000; /*text-decoration: none;*/ }


  
  /* relevant for the tutorial - start */
  #gallery { position: relative; }
    #pictures { position: relative; height: 450px; }
    #pictures img { position: absolute; top: 0; left: 0; }
    
    #prev, #next { margin-top: 20px; text-align: left; font-size: 1.5em; }
  /* relevant for the tutorial - end */