index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>人脸检测模型</title>
    <style>
      body {
        margin: 0;
        padding: 0;
        width: 100vw;
        height: 100vh;
        display: flex;
        background-color: lightblue;
        place-items: center;
        place-content: center;
        /* justify-content: center;
        align-items: center; */
      }
      canvas {
        position: fixed;
        display: block;
      }
    </style>
  </head>
  <body>
    <video id="video" width="1080px" height="720px" autoplay muted></video>
  </body>
  <script defer src="face-api.min.js"></script>
  <script defer src="face-start.js"></script>
</html>