ent-bottom.affix {
      bottom: 10px;
    }
    .affixed-element-bottom.affix-bottom {
      position: relative;
    }
    .grow-btn, .shrink-btn {
      color: #FFF;
    }
    .grow-btn {
      background-color: #2ECC40;
    }
    .grow-btn:hover {
      background-color: #3D9970;
    }
    .shrink-btn {
      background-color: #FF4136;
    }
    .shrink-btn:hover {
      background-color: #85144B;
    }
  </style>

  <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
 