Detailed introduction to Bootstrap prompt information

In some Web pages, a tag is often added to tell the user some additional information. For example, if a new navigation item is added to the navigation, a "new" tag may be added to tell the user

　[Related video recommendation: Bootstrap Tutorial]

In the Bootstrap framework, this effect is specially extracted into a label component, and ends with ".label ” style to achieve highlighting

The method of use is very simple, you can use inline tags such as span

<h3>Example heading <span class="label label-default">New</span></h3>

[Auto-hide]

When When there is no content, automatically hide

.label:empty {display: none;
}

<h3>Example heading <span class="label label-default"></span></h3>

##[Color Settings]

and button elements button Similarly, the label style also provides a variety of colors:

　☑ label-default: default label, dark gray

　☑ label-primary: main label, dark blue

　☑ label-success: success label, green

　☑ label-info: information label, light blue

　☑ label-warning: warning label, orange

　☑ label-danger : Error label, red

Mainly use these class names to modify the background color and text color

<span class="label label-default">Default</span><span class="label label-primary">Primary</span><span class="label label-success">Success</span><span class="label label-info">Info</span><span class="label label-warning">Warning</span><span class="label label-danger">Danger</span>

##Badge

In a sense, the badge effect is very similar to the label effect introduced earlier. It is also used to make some prompt messages. What often appears is the information sent by some systems, such as the system prompts how many messages are unread

In the Bootstrap framework, this effect is called the badge effect, and the "badge" style is used to achieve it

You can use span tags to make them like tags, and then add the

badge

class

<a href="#">Inbox <span class="badge">42</span></a>

##[Auto-hide]

If there are no new or unread information entries, that is to say, it does not contain any content, the badge component can be automatically hidden (implemented through the CSS

:empty

selector)

<pre class="brush:php;toolbar:false">.badge:empty {display: none; }</pre>

<a href="#">Inbox <span class="badge"></span></a>

【Button Badge】

The badge has a similar style in the button element button and capsule navigation nav-pills. It’s just a different color

<ul class="nav nav-pills" role="tablist">
  <li role="presentation" class="active"><a href="#">Home <span class="badge">42</span></a></li>
  <li role="presentation"><a href="#">Profile</a></li>
  <li role="presentation"><a href="#">Messages <span class="badge">3</span></a></li></ul><button class="btn btn-primary" type="button">
  Messages <span class="badge">4</span></button>

Big screen

This is a lightweight, flexible component that can extend to the entire browser viewport to display key points on the website Content

<div class="jumbotron">
  <h1>小火柴的蓝色理想</h1>
  <p>好的代码像粥一样，都是用时间熬出来的</p>
  <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a></p></div>

If you add rounded corners to the giant screen component, just put this component inside the
.container

element

<pre class="brush:php;toolbar:false">&lt;div class=&quot;container&quot;&gt;&lt;div class=&quot;jumbotron&quot;&gt;&lt;h1&gt;小火柴的蓝色理想&lt;/h1&gt;&lt;p&gt;好的代码像粥一样，都是用时间熬出来的&lt;/p&gt;&lt;p&gt;&lt;a class=&quot;btn btn-primary btn-lg&quot; href=&quot;#&quot; role=&quot;button&quot;&gt;Learn more&lt;/a&gt;&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;</pre>

Header

The header component can add the

h1

tag Appropriate space and separation from the rest of the page. It supports the default effect of

small elements embedded within h1 tags, and also supports most other components (need to add some additional styles) <pre class="brush:php;toolbar:false">.page-header {padding-bottom: 9px;margin: 40px 0 20px;border-bottom: 1px solid #eee; }</pre>

<div class="page-header">
  <h1>Example page header <small>Subtext for header</small></h1></div>

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