，将固定的背景附加到html元素，如此。

  html {
 background：url（../ img / bg.jpg）无重复中心固定; 
 background-size：cover; 
 height：100％; 
 overflow：hidden; 
} 
 

然后设置滚动到正文。

  body {
 height：100％; 
 overflow：scroll; 
} 
 

您仍然需要IE 8的background div，因为它不支持background-size属性，因此移动浏览器应该隐藏它。最简单的方法是利用IE 8无法读取媒体查询

  @media only screen {#background {display ： 没有; }} 
 

Sorry for a lack of example on this one, but I figure it's easy enough to understand.

I have a fixed background on my site, which is currently implemented like this:

#background {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #28305e;
    background-image: url(../images/background.jpg);
    background-size: cover;
    -moz-background-size: cover;
    background-position: center center;
    z-index: -10;
}

<div id="background"></div>

This is great in all browsers so far except for mobile browsers where they hide the address bar upon scroll-down. When the address bar is hidden, the viewport expands vertically, and the background-image jarringly resizes itself. On this particular site it will be common for users to scroll up and down, and the effect is distracting.

Any ideas or strategies on working around this or implementing the background in a different way?

I could wrap the entire thing in a fixed container, and set the overflow-y to scroll, which prevents the address bar from ever being hidden, but I'd prefer not to do this (Google Glass can't scroll through those containers, haha... Would like to demo on there as well).

I've been trying to think of something that provides background-image: cover functionality with some sort of buffer, so that it renders larger than the viewport, and won't re-render unless the viewport is expanded beyond that buffer, but I'm not sure how to implement that.

EDIT: I actually did implement this and detailed the process in an answer below. However, even with this buffer setup (which extends the height of the background image to be 60+ pixels larger than the viewport height), upon the address bar hiding, it still shows a blank background-color segment that gets revealed, and once you stop scrolling, it renders the rest of the background image.

Still looking for a way to keep the native address bar hide functionality (which has now been expanded to iOS Safari on iPad in iOS 8), and also have a fullscreen background image that always fully renders even if the viewport changes height when hiding the address bar. Starting to wonder if I should just be filing bug reports for all the browsers...

For mobile safari you must, unintuitively, attach fixed backgrounds to the html element like so.

html {
    background: url(../img/bg.jpg) no-repeat center center fixed;
    background-size: cover;
    height: 100%;
    overflow: hidden;
}

Then set the scrolling to the body.

body {
    height: 100%;
    overflow: scroll;
}

You'll still need the background div for IE 8 since it doesn't support the background-size property, so mobile browsers should hide it. The cleanest way to do this is to exploit IE 8's inability to read a media query

@media only screen { #background { display: none; }}