每当网络应用程序打开任何设备然后第一次设置宽度时,所有标签宽度都不会改变。 它不能更改HTML所有标签宽度。
body{
min-width: 1124px;
}

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>size check</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>
<body>
<div class="col-lg-4">
hello
</div>
<div class="col-lg-4">
hkjhjk
</div>
<div class="col-lg-4">
kjghkjkj
</div>
<section>
The online encyclopedia project Wikipedia is by far the most popular wiki-based website, and is one of the most widely viewed sites of any kind in the world, having been ranked in the top ten since 2007.[3] Wikipedia is not a single wiki but rather a collection of hundreds of wikis, one for each language. There are at least tens of thousands of other wikis in use, both public and private, including wikis functioning as knowledge management resources, notetaking tools, community websites and intranets. The English-language Wikipedia has the largest collection of articles; as of September 2016, it had over five million articles. Ward Cunningham, the developer of the first wiki software, WikiWikiWeb, originally described it as "the simplest online database that could possibly work".[4] "Wiki" (pronounced [ˈwiki][note 1]) is a Hawaiian word meaning "quick".
</section>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous">
</script>
</body>
</html>
&#13;