【问题标题】：How to align bootstrap div horizontally on the page?如何在页面上水平对齐引导 div？
【发布时间】：2018-01-12 14:48:02
【问题描述】：
您好，请看代码：-
<form runat="server">
<div class="container">
<div class="row">
<div class="col-md-6">
<div class="panel panel-primary">
<div class="panel-heading text-center">
<h3 class="panel-title">
<span class="glyphicon glyphicon-bookmark"></span> Quick Shortcuts</h3>
</div>
<div class="panel-body">
<div class="row">
<div class="text-center">
<a href="#" class="btn btn-danger btn-block" role="button"><span class="glyphicon glyphicon-list-alt"></span> <br/>Apps</a>
<a href="#" class="btn btn-warning btn-block" role="button"><span class="glyphicon glyphicon-bookmark"></span> <br/>Bookmarks</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-signal"></span> <br/>Reports</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-comment"></span> <br/>Comments</a>
<a href="#" class="btn btn-success btn-block" role="button"><span class="glyphicon glyphicon-user"></span> <br/>Users</a>
<a href="#" class="btn btn-info btn-block" role="button"><span class="glyphicon glyphicon-file"></span> <br/>Notes</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-picture"></span> <br/>Photos</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-tag"></span> <br/>Tags</a>
</div>
</div>
</div>
</div>
</div>
</div>
</form>
我得到的输出是这样的：-https://i.stack.imgur.com/A3C0B.png
它位于页面的右侧。我也希望它水平居中且响应迅速。
请帮忙..
【问题讨论】：
标签：
html
css
twitter-bootstrap
responsive-design
bootstrap-4
【解决方案1】：
用 col-md-offset-* 试试，可能对你有帮助
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<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"></script>
</head>
<body>
<form runat="server">
<div class="container">
<div class="row">
<div class="col-md-offset-3 col-sm-offset-3 col-xs-offset-3 col-md-6 col-sm-6 col-xs-6 ">
<div class="panel panel-primary">
<div class="panel-heading text-center">
<h3 class="panel-title">
<span class="glyphicon glyphicon-bookmark"></span> Quick Shortcuts</h3>
</div>
<div class="panel-body">
<div class="row">
<div class="text-center">
<a href="#" class="btn btn-danger btn-block" role="button"><span class="glyphicon glyphicon-list-alt"></span> <br/>Apps</a>
<a href="#" class="btn btn-warning btn-block" role="button"><span class="glyphicon glyphicon-bookmark"></span> <br/>Bookmarks</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-signal"></span> <br/>Reports</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-comment"></span> <br/>Comments</a>
<a href="#" class="btn btn-success btn-block" role="button"><span class="glyphicon glyphicon-user"></span> <br/>Users</a>
<a href="#" class="btn btn-info btn-block" role="button"><span class="glyphicon glyphicon-file"></span> <br/>Notes</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-picture"></span> <br/>Photos</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-tag"></span> <br/>Tags</a>
</div>
</div>
</div>
</div>
</div>
</div>
</form>
</body>
</html>
【解决方案2】：
您的代码中缺少一个结束标记。
要居中，您可以将mx-auto 添加到您的列中，如下所示：
<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">
<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>
<form runat="server">
<div class="container">
<div class="row">
<div class="col-md-6 mx-auto">
<div class="panel panel-primary">
<div class="panel-heading text-center">
<h3 class="panel-title">
<span class="glyphicon glyphicon-bookmark"></span> Quick Shortcuts</h3>
</div>
<div class="panel-body">
<div class="row">
<div class="text-center">
<a href="#" class="btn btn-danger btn-block" role="button"><span class="glyphicon glyphicon-list-alt"></span> <br/>Apps</a>
<a href="#" class="btn btn-warning btn-block" role="button"><span class="glyphicon glyphicon-bookmark"></span> <br/>Bookmarks</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-signal"></span> <br/>Reports</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-comment"></span> <br/>Comments</a>
<a href="#" class="btn btn-success btn-block" role="button"><span class="glyphicon glyphicon-user"></span> <br/>Users</a>
<a href="#" class="btn btn-info btn-block" role="button"><span class="glyphicon glyphicon-file"></span> <br/>Notes</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-picture"></span> <br/>Photos</a>
<a href="#" class="btn btn-primary btn-block" role="button"><span class="glyphicon glyphicon-tag"></span> <br/>Tags</a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</form>
附：您似乎使用的是 Bootstrap 3，但您的标签显示 Bootstrap 4。