samples/default.html

<!doctype html>
<html>
  <head>
    <title>Sample</title>
    <style>
      #app {
        width: 600px;
        height: 400px;
        display: block;
      }
    </style>
  </head>
  <body>
    <div id="app"></div>
    <script src="https://cdn.jsdelivr.net/npm/cytoscape"></script>
    <script src="../build/index.umd.js"></script>
    <script>
      const cy = cytoscape({
        container: document.getElementById('app'),
        elements: [
          { data: { id: 'a' } },
          { data: { id: 'b' } },
          {
            data: {
              id: 'ab',
              source: 'a',
              target: 'b',
            },
          },
        ],
      });
      const layers = cy.layers();
      // layers.append('svg-static').node.innerHTML = `<text>TEST</text>`;
      layers.nodeLayer.insertAfter('html-static').node.innerHTML = 'Static Test Label';

      layers.renderPerNode(layers.append('canvas'), (ctx, node, bb) => {
        ctx.strokeStyle = 'red';
        ctx.strokeRect(0, 0, bb.w, bb.h);
      });
      layers.renderPerNode(layers.append('html'), (elem, node) => {
        elem.textContent = node.id();
      });
      layers.renderPerEdge(layers.append('canvas'), (ctx, edge, path) => {
        ctx.strokeStyle = 'red';
        ctx.stroke(path);
      });
    </script>
  </body>
</html>