Sunny-117/js-challenges

shadowDOM实现css隔离

Sunny-117 opened this issue · 1 comments

Sunny-117 commented
shadowDOM实现css隔离
huccct commented 
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <template id="my-component-template">
      <style>
        .container {
          background-color: #f1f1f1;
          padding: 10px;
        }
        .text {
          color: #4caf50;
        }
      </style>
      <div class="container">
        <div class="text">Hello, World!</div>
      </div>
    </template>
  </head>
  <body>
    <div id="my-component"></div>
  </body>
  <script>
    const template = document.querySelector('#my-component-template');
    const shadowRoot = document.querySelector('#my-component').attachShadow({ mode: 'open' });
    const instance = template.content.cloneNode(true);
    shadowRoot.appendChild(instance);
  </script>
</html>