0-transparent-100x50.svg),
                    url(support/blue-100x50-transparent-100x50.svg);
      }

      div.exclude {
        left: 340px;
        mask-composite: exclude;
        mask-image: url(support/transparent-100x50-blue-100x50.svg),
                    linear-gradient(rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 1) 100%),
                    url(support/blue-100x50-transparent-100x50.svg);
      }
    </style>
  </head>
  <body>
    <div class="add"></div>
    <div class="intersect"></div>
    <div cla