background-attachment :定义背景图片随滚动轴的移动方式css
取值: scroll | fixed | inherithtml
scroll: 随着页面的滚动轴背景图片将移动web
fixed: 随着页面的滚动轴背景图片不会移动app
inherit: 继承初始值: scrollui
继承性: 否url
适用于: 全部元素.net
给移动端页面添加背景图:code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1" /> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta content="telephone=no, email=no" name="format-detection"> <meta http-equiv="pragma" content="no-cache"> <link rel="stylesheet" href="css/common.css"> <link rel="stylesheet" href="css/page.css"> <title>分享红包</title> <style> html{ overflow-x:hidden;} body{ overflow-x:hidden;} </style> </head> <body style="background: url(images/red_envelopes_bg.jpg) fixed no-repeat; background-size: 100% 100%"> <div class="red_envelopes"> <img src="images/red_envelopes.png" width="100%" alt=""> <p><font>88</font>元红包</p> </div> <input class="envelopes_input" type="text" placeholder="请输入手机号码" /> <div class="envelopes_btn" >当即注册</div> </body> </html>``` background-position:表示背景图片的位置 background-size:表示背景图片的大小 这里fixed能够保证图片纵向铺满整个页面且不随页面的滑动而滑动 效果如图: 