| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <style> |
| body, html { |
| margin: 0; |
| } |
| |
| section { |
| display: inline-block; |
| } |
| </style> |
| </head> |
| <body> |
| <section id="container"></section> |
| <section>Example page with shadow host</section> |
| <script> |
| const host = document.getElementById("container"); |
| const shadowRoot = host.attachShadow({ mode: "open" }); |
| shadowRoot.innerHTML = ` |
| <style> |
| div { |
| width: 200px; |
| height: 100px; |
| } |
| .red { background-color: red; } |
| .green { background-color: green; } |
| .blue { background-color: blue; } |
| </style> |
| <div class="red"></div> |
| <div class="green"></div> |
| <div class="blue"></div> |
| `; |
| </script> |
| </body> |
| </html> |
