1像素的差距只有在iPad上，但在Safari和Chrome上罚款 [英] A 1 pixel gap only coming on iPad but fine on Safari and Chrome
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问题描述
在过去，WebKit引擎中有一些错误报告为舍入问题：
Here at this line after clouds which will be only visible in iPad or iPhone. Any idea how to solve it?
It's fine in all other desktop browsers.
CSS
#banner-inner { height: 270px; margin: 0 auto; position: relative; width: 954px;}
.cloud-bottom { position: absolute; background: url(images/clouds_dark.png) repeat-x 0 bottom ; z-index: 1; width:100%;height:111px;bottom:0}
.cloud-top { position: absolute; background: url(images/clouds_light.png) repeat-x 0 bottom ; z-index: 4;width:100%;height:111px;bottom:0}
解决方案
This seems to be a bug of the WebKit rendering engine on the iPad, when the page scale factor is less than 1.0. If you keep the page scale factor above 1.0, then the pixel gap does not show up. This can be done with a meta tag:
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no, width=device-width">
I also found a simple page that demonstrate a similar issue (a rendering glitch on iPad only):
In the past, there have been a number of bugs reported for rounding issues in the WebKit engine:
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