html运行实例（cssref_mix-blend-mode

代码示例：（标识：cssref_mix-blend-mode_cutout）
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {font-family: Arial, Helvetica, sans-serif;}

.image-container {
  background-image: url("paris.jpg");
  background-size: cover;
  position: relative;
  height: 300px;
}

.text {
  background-color: white;
  color: black;
  font-size: 10vw; 
  font-weight: bold;
  margin: 0 auto;
  padding: 10px;
  width: 50%;
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
}
</style>
</head>
<body>

<h1>响应式文本抠图效果</h1>

<div class="image-container">
  <div class="text">SHANGHAI</div>
</div>

<p>本例创建了一种响应式的抠图文本，文本会剪切背景图像。</p>
<p>请调整 浏览器窗口大小来查看响应式效果。</p>
<p><b>注释：</b>此例在 Internet Explorer 或 Edge 中无效。</p>

</body>
</html>