接下来给阴影添加颜色 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <style>
    div {
      width: 300px;
      height: 100px;
      padding: 15px;
      background-color: yellow;
      box-shadow: 10px 10px grey;
    }
  </style>
</head>
<body>

  <div>This is a div element with a box-shadow</div>

</body>
</html>
        