使用Bootstrap清除元素的浮动
要清除元素的浮点数，请使用.clearfixBootstrap类。
示例
您可以尝试运行以下代码来清除元素的浮点数
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scripts/jquery.min.js"></script>
<script src = "/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<div class = "clearfix" style = "background: orange;border: 1px solid #000; padding: 10px;">
<div class = "pull-left" style = "background: blue; color: white;">
left
</div>
<div class = "pull-right" style = "background: blue; color:white;">
right
</div>
</div>
</body>
</html>