Html 使用 Twitter Bootstrap 的中心表单
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Center Form using Twitter Bootstrap
提问by Nitzle
I am using Twitter's Bootstrap to build a form (served by django). I want to have the form centered on the page but I'm running into some problems.
我正在使用 Twitter 的 Bootstrap 来构建一个表单（由 django 提供）。我想让表单以页面为中心，但我遇到了一些问题。
Here is my HTML:
这是我的 HTML：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>My Form</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<!-- Le styles -->
<link href="/bootstrap/css/bootstrap.css" rel="stylesheet">
<style>
body {
padding-top: 60px; /* 60px to make the container go all the way to the bottom of the topbar */
}
</style>
<link href="/bootstrap/css/bootstrap-responsive.css" rel="stylesheet">
<!-- Le HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
<body>
<div class="container">
<div class="row">
<div class="span12" style="text-align:center; margin: 0 auto;">
<form class="form-horizontal" method="post" action="/form/">
<fieldset>
<legend>Please login</legend>
<div class="control-group">
<label class="control-label" for="id_username">Username</label>
<div class="controls">
<input name="username" maxlength="100" placeholder="Enter your username..." type="text" class="input-large" id="id_username" />
</div>
</div>
<div class="control-group">
<label class="control-label" for="id_password">Password</label>
<div class="controls">
<input name="password" maxlength="100" placeholder="Enter your password..." type="password" class="input-large" id="id_password" />
</div>
</div>
</fieldset>
</form>
</div>
</div>
</div>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="/bootstrap/js/jquery.js"></script>
<script src="/bootstrap/js/bootstrap-transition.js"></script>
<script src="/bootstrap/js/bootstrap-alert.js"></script>
<script src="/bootstrap/js/bootstrap-modal.js"></script>
</body>
</html>
I've excluded some additional django logic ({% csrf_token %}, some if statements, etc), but this should recreate the problem.
我已经排除了一些额外的 django 逻辑（{% csrf_token %}、一些 if 语句等），但这应该会重现问题。
The actual input elements (username and password textboxes) are centering like I expected, but the labels remain to the far left of the page. Am I missing markup somewhere or do I have to override some of the control-label CSS?
实际的输入元素（用户名和密码文本框）像我预期的那样居中，但标签仍然在页面的最左侧。我是否在某处缺少标记，或者我是否必须覆盖某些控制标签 CSS？
回答by Andres Ilich
You need to include your form inside a container, the bootstrap already comes with a container class that is width:940pxso you can wrap everything inside and it'll center automatically, like so:
您需要将表单包含在容器中，引导程序已经附带了一个容器类，width:940px因此您可以将所有内容包装在其中并自动居中，如下所示：
<div class="container">
<div class="row">
<div class="span12">
<form class="form-horizontal" method="post" action="/form/">
<fieldset>
<legend>Please login</legend>
<div class="control-group">
<label class="control-label" for="id_username">Username</label>
<div class="controls">
<input name="username" maxlength="100" placeholder="Enter your username..." type="text" class="input-large" id="id_username" />
</div>
</div>
<div class="control-group">
<label class="control-label" for="id_password">Password</label>
<div class="controls">
<input name="password" maxlength="100" placeholder="Enter your password..." type="password" class="input-large" id="id_password" />
</div>
</div>
</fieldset>
</form>
</div>
</div>
</div>
