css框架bootstrap（练习表单）

css框架bootstrap（练习表单）

简介

Bootstrap是Twitter推出的一个开源的用于前端开发的工具包。它由Twitter的设计师Mark Otto和Jacob Thornton合作开发，是一个CSS/HTML框架。Bootstrap提供了优雅的HTML和CSS规范，它即是由动态CSS语言Less写成。Bootstrap一经推出后颇受欢迎，一直是GitHub上的热门开源项目，包括NASA的MSNBC（微软全国广播公司）的Breaking News都使用了该项目。

组件

Bootstrap中包含了丰富的Web组件，根据这些组件，可以快速的搭建一个漂亮、功能完备的网站。其中包括以下组件：下拉菜单、按钮组、按钮下拉菜单、导航、导航条、面包屑、分页、排版、缩略图、警告对话框、进度条、媒体对象等

javascript插件

Bootstrap自带了13个jQuery插件，这些插件为Bootstrap中的组件赋予了“生命”。其中包括：模式对话框、标签页、滚动条、弹出框等。

定制自己的框架（可以自己修改css中的样式）

今天练习表单：

宽度100%：(首先你要引入

bootstrap.min.css

文件；网上可以下载bootstrap)

<form action="www.baidu.com" method="post">
<div class="input-group">
<span class="input-group-addon">@</span>
<input type="text" class="form-control input-1g"/>
</div>
<div>
<button type="submit" class="btn btn-success btn-lg">keep me posted</button>
</div>
</form>

居中：

<div class="container">//与960grid写法不同，
<div class="row">
<div class="col-md-6 col-md-offset-3">
<form action="/mailing-list" method="post" >
<p class="input-group">
<span class="input-group-addon">@</span>
<input type="text" class="form-control input-lg" name="email" placeholder="jonsnow@knowsnothi.ng" />
</p>
<p class="text-center">
<button type="submit" class="btn btn-success btn-lg">Keep me posted</button>
</p>
</span>
</form>
</div>
</div>
</div>

邮件符号：

class="icon-envelope

小信封;

class="text-center"

文本居中；

<div class="container">
<div class="row">
<div class="col-md-6 col-md-offset-3">
<form class="margin-base-vertical">
<p class="input-group">
<span class="input-group-addon"><span class="icon-envelope"></span></span>
<input type="text" class="form-control input-lg" name="email" placeholder="jonsnow@knowsnothi.ng" />
</p>
<p class="help-block text-center"><small>We won't send you spam. Unsubscribe at any time.</small></p>
<p class="text-center">
<button type="submit" class="btn btn-success btn-lg">Keep me posted</button>
</p>
</span>
</form>
</div>
</div>

完整版：(网站摘录)

`

Bootstrap In Practice - Landing Page Example

<link href="http://fonts.googleapis.com/css?family=Abel|Open+Sans:400,600" rel="stylesheet" />

<style>

/* http://css-tricks.com/perfect-full-page-background-image/ */
html {
background: url(img/6133364748_89f2365922_o.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}

body {
padding-top: 20px;
font-size: 16px;
font-family: "Open Sans",serif;
background: transparent;
}

h1 {
font-family: "Abel", Arial, sans-serif;
font-weight: 400;
font-size: 40px;
}

/* Override B3 .panel adding a subtly transparent background */
.panel {
background-color: rgba(255, 255, 255, 0.9);
}

.margin-base-vertical {
margin: 40px 0;
}

</style>

<div class="container">
<div class="row">
<div class="col-md-6 col-md-offset-3 panel panel-default">

<h1 class="margin-base-vertical">Have you ever seen the rain?</h1>

<p>
Someone told me long ago there's a calm before the storm. I know, It's been comin for some time.
</p>
<p>
When it's over, so they say, it'll rain a sunny day. I know,    Shinin down like water.
</p>

<p>
I want to know, have you ever seen the rain?
</p>

<form class="margin-base-vertical">
<p class="input-group">
<span class="input-group-addon"><span class="icon-envelope"></span></span>
<input type="text" class="form-control input-lg" name="email" placeholder="jonsnow@knowsnothi.ng" />
</p>
<p class="help-block text-center"><small>We won't send you spam. Unsubscribe at any time.</small></p>
<p class="text-center">
<button type="submit" class="btn btn-success btn-lg">Keep me posted</button>
</p>
</span>
</form>

<div class="margin-base-vertical">
<small class="text-muted"><a href="http://www.flickr.com/photos/erwlas/6133364748/">Background picture by erwlas @flickr</a>. Used under <a href="http://creativecommons.org/licenses/by/2.0/deed.en">Creative Commons - Attribution</a>.</small>
</div>

</div><!-- //main content -->
</div><!-- //row -->
</div> <!-- //container -->

`