示例代码:
<!DOCTYPE html><html lang="zh"><head><!--禁止页面缩放--><meta name="viewport" content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" charset="UTF-8"><title>设置背景图片并禁止页面缩放</title></head><body><!--设置背景图片,z-index = -1表示图片元素处于页面层级的底部,即背景图片--><img src="/background.png" style="position:absolute; width:100%; height:100%; left:0; top:0; z-index:-1;"/><p>测试</p></body></html>