.switch {
    position: relative;
    display: inline-block;
    width: 49px;
    height: 23px;
  }

  .switch input {
    opacity: 0;
    width: 0;
    height: 0;
  }

  .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
  }

  .slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
  }

  .input-field {
    width: 300px;
  }

  input:checked + .slider {
    background-color: #2196F3;
  }

  input:focus + .slider {
    box-shadow: 0 0 1px #2196F3;
  }

  input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
  }

  /* Rounded sliders */
  .slider.round {
    border-radius: 34px;
  }

  .slider.round:before {
    border-radius: 50%;
  }


  [data-tip] {
    position:relative;

  }
  [data-tip]:before {
    content:'';
    /* hides the tooltip when not hovered */
    display:none;
    content:'';
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid #1a1a1a;
    position:absolute;
    top:30px;
    left:5px;
    z-index:8;
    font-size:0;
    line-height:0;
    width:0;
    height:0;
  }
  [data-tip]:after {
    display:none;
    content:attr(data-tip);
    position:absolute;
    top:35px;
    left:-133px;
    padding:5px 8px;
    background:#1a1a1a;
    color:#fff;
    z-index:9;
    font-size: 0.75em;
    height:18px;
    line-height:18px;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    border-radius: 3px;
    white-space:nowrap;
    word-wrap:normal;
  }
  [data-tip]:hover:before,
  [data-tip]:hover:after {
    display:block;
  }