HTML、DOM 和 BOM:深入解析网页加载和渲染过程
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Web Page Loading and Rendering</title>
</head>
<body>
<h1>Web Page Loading and Rendering</h1>
<p>
When a web page is loaded, the browser's rendering engine parses the HTML and builds the DOM tree.
Then, it creates the rendering tree, lays out the contents, and finally, paints the page.
</p>
<script>
// JavaScript code that interacts with the DOM and BOM
document.querySelector('h1').style.color = 'blue';
console.log(window.innerWidth);
</script>
</body>
</html>
这段HTML代码展示了一个简单的网页,其中包含了标题和一段文本。在<script>
标签内,使用JavaScript代码修改了标题的颜色,并且打印了窗口的内宽。这个过程模拟了实际网页中的DOM操作和BOM使用,有助于理解页面加载和渲染的过程。
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