bootstrap 4 .bg-dark .bg-primary等不能正常工作

时间:2018-01-09 14:13:59

标签: html bootstrap-4

我现在只是从bootstrap 4文档中选择它,但它不会给我任何背景颜色。



<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
<div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>
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当我尝试使用卡片类时,它会变成轮廓,只有当我从文档本身替换它时,才会从引导程序中获取.bg-{{color}}的颜色而不是全身所承诺的颜色。

是不是因为我使用的是最新的bootstrap版本alpha 6?

4 个答案:

答案 0 :(得分:0)

无法理解实际问题是什么,但这是一个代码片段

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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet"/>
<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
<div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>
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答案 1 :(得分:0)

您需要在HTML文档的顶部添加引导样式表,并且需要在bootstrap scripts附近的body标记底部添加</body> bootstrap 1}}正常运作。

参考:https://getbootstrap.com/4.0/getting-started

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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" integrity="sha384-Zug+QiDoJOrZ5t4lssLdxGhVrurbmBWopoEl+M6BdEfwnCJZtKxi1KgxUyJq13dy" crossorigin="anonymous">


<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
<div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>

<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/js/bootstrap.min.js" integrity="sha384-a5N7Y/aK3qNeh15eJKGWxsqtnX/wWdSZSKp+81YjTmS15nvnvxKHuzaWwXHDli+4" crossorigin="anonymous"></script>
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答案 2 :(得分:0)

您应该在head标记内添加对boostrap css文件的引用。

Bootstrap 4.0.0-alpha.6

<head>
....
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css">    
</head>

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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/>
<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
<div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>
&#13;
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Bootstrap 4.0.0-beta.3

<head>
....
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css">    
</head>

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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet"/>
<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
<div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>
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所以你的典型页面可能是:

<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    ...
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css">
</head>
<body>
    <div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
    <div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>
</body>
</html>

答案 3 :(得分:0)

毫米我的错,我忘了在laravel框架内的node_modules上更新我的bootstrap文件...刚刚解决了它...感谢你帮我解决了这些人