.example-ripple-container {
    cursor: pointer;
    text-align: center;
  
    width: 300px;
    height: 300px;
    line-height: 300px;
  
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
  
    -webkit-user-drag: none;
    -webkit-tap-highlight-color: transparent;
  }
  
  /** Styles to make the demo look better. */
  .example-ripple-checkbox {
    margin: 6px 12px 6px 0;
  }
  
  .example-ripple-form-field {
    margin: 0 12px 0 0;
  }
  