Background-size: cover suddenly stopped working in Google Chrome?

问题

Is anyone else having this issue? I create websites for a living, and some employ the use of the css property background-size: cover. All of the sudden about 1 week ago, all of the sites with this property no longer display right in Google Chrome. (all other browsers are working fine.) Is anyone else experiencing this? Is it just MY google chrome or did something change? Because the backgrounds were displaying properly until about a week ago, and I did not change anything. They just stopped displaying properly, seemingly out of nowhere....

回答1:

Best practice: always set background-image first and then background-size.

回答2:

You only need to use !important :

background-size: cover !important;

回答3:

I just ran into this problem in Chrome, too.

None of the above answers worked for me. Specifically, I was trying to set the <body> element background to background-size: cover. However, the background image would never extend vertically to fill the page.

After some trial and error, I found that setting the <html> element width and height to 100% fixed the problem in Chrome. (For what it's worth, changing the <body> element's width and height seemed to have no effect.)

In my css, I have the following rules to fix the issue:

html {
  width: 100%;
  height: 100%;
}

回答4:

You must do CSS hacks for google chrome.

Use body:nth-of-type(1) .elementOrClassName{property:value;}

only for google chrome.

for your case,

nth-of-type(1) .elementOrClassName{background-size:80px 60px;}

回答5:

I was having the same problem all of a sudden w/ not only GC but also FF and Opera. i was using a php function to pull random images for my background and this is what i had....

CSS:

.main-slideshow .video img  {   
  cursor:pointer;
  width:550px !important;       
  height:340px !important;   
  background-repeat: no-repeat; 
  -moz-background-size:cover;
  -webkit-background-size: cover; 
  -o-background-size: cover;
  background-size: cover;   }

and HTML/PHP:

$result .='<img alt="" style="background:url('.$thumbnail.')" src="/images/play1.png" /> ';

it was working for some days and suddenly background-repeat and background-size stopped working. so this morning i found out that the following changes are working perfectly for GC (v21), FF (v14), Opera (v12) and Safari (v5.1.7)...still no luck w/ IE though :(

CSS:

.main-slideshow .video img  {   
  cursor:pointer;
  width:550px !important;       
  height:340px !important;   
  -moz-background-size:cover;
  -webkit-background-size: cover; 
  -o-background-size: cover;
  background-size: cover;   }

HTML/PHP:

    $result .='<img alt="" style="background-image:url('.$thumbnail.')" style="background-repeat: no-repeat" style="background-size:cover" src="/images/play1.png" />';

may be it's a lousy solution but it's working for me (so far) hope this helps some one :)

回答6:

The following is a solution to the problem, but it won't be for everybody. I estimate that this solution will help a minority of the people experiencing the author's problem.

The background-size option can stop working in chrome if your container is too small, vertically, compared to your background image.

I was in a situation where I had to position a small portion of a large background image across a div that was 7 pixels tall.

In the Chrome debugger, changing the div height to 9 pixels "snapped" the background-size into place.

My ultimate solution was to restructure my divs so that I would not run into this problem.

To see if this solution will help you, in the Chrome debugger, enlarge your div. If, at some point, the background-size snaps into place, then you know this is the issue.

回答7:

Old question but has similiar issue and it turned out I needed to add and   to the empty div's I was applying background-size: cover to.

回答8:

Try this background-size:contain;

回答9:

For me, following worked for Chrome, IE 8, IE 9:

.itemFullBg{
background:url('image/path/name.png') no-repeat;

-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
background-size:100% 100%;      
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader
    (src='image/path/name.png',sizingMethod='scale');
}

回答10:

You can fix the problem by setting the height of the tag. For example, if you have a page that has a background image, set the height of the html and body tags in the CSS, like so:

html { height:100%;  min-height:100%;  } body{  min-height:100%;  }

hope this helps

回答11:

Instead of using:

-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;

Use:

-webkit-background-size: 100% 100%;
-moz-background-size: 100% 100%;
-o-background-size: 100% 100%;
background-size: 100% 100%;

来源：https://stackoverflow.com/questions/11811203/background-size-cover-suddenly-stopped-working-in-google-chrome

标签

google-chrome

css3

css

cover