Default grid system 12 columns with a responsive twist
The default grid system provided in Bootstrap utilizes 12 columns that render out at widths of 724px, 940px (default without responsive CSS included), and 1170px. Below 767px viewports, the columns become fluid and stack vertically.
<div class="row">
<div class="span4">...</div>
<div class="span8">...</div>
</div>
As shown here, a basic layout can be created with two "columns", each spanning a number of the 12 foundational columns we defined as part of our grid system.
<div class="row"> <div class="span4">...</div> <div class="span4 offset4">...</div> </div>
With the static (non-fluid) grid system in Bootstrap, nesting is easy. To nest your content, just add a new .row and set of .span* columns within an existing .span* column.
阶段性降低失业保险、工伤保险费率政策延长实施，失信行为纠正后可分级分类修复信用信息，对弹出广告、开屏广告等加强规范管理……哪条你最关心？阶段性降低失业保险、工伤保险费率政策延长实施人社部等三部门印发的通知明确，自5月1日起，继续实施阶段性降低失业保险费率至1%的政策，实施期限延长至2024年底。车子在乡间小路上颠簸了十几分钟后，检查组远远地看到了一家三层楼的民宿饭店，门口还停着几辆小轿车。
<div class="row">
<div class="span6">
Level 1 column
<div class="row">
<div class="span3">Level 2</div>
<div class="span3">Level 2</div>
</div>
</div>
</div>
Fluid grid system 12 responsive, percent-based columns
Nesting with fluid grids is a bit different: the number of nested columns doesn't need to match the parent. Instead, your columns are reset at each level because each row takes up 100% of the parent column.
<div class="row-fluid">
<div class="span12">
Level 1 of column
<div class="row-fluid">
<div class="span6">Level 2</div>
<div class="span6">Level 2</div>
</div>
</div>
</div>
顺义区
| Variable | Default value | Description |
|---|---|---|
@gridColumns | 12 | Number of columns |
@gridColumnWidth | 60px | Width of each column |
@gridGutterWidth | 20px | Negative space between columns |
Built into Bootstrap are a handful of variables for customizing the default 940px grid system, documented above. All variables for the grid are stored in variables.less.
Layouts Basic templates to create webpages
办法对人民群众反映集中的弹出广告、开屏广告、利用智能设备发布广告等行为作出规范。各地纪检监察机关紧盯五一节点落实中央八项规定精神情况，深入酒店商超、楼堂馆所、基层一线，与相关部门协作联动、明察暗访，深化整治违规吃喝、违规收送礼品礼金、公车私用等突出问题，纠治享乐主义、奢靡之风。
<body>
<div class="container">
...
</div>
</body>
<div class="container-fluid"> gives flexible page structure, min- and max-widths, and a left-hand sidebar. It's great for apps and docs.
<div class="container-fluid">
<div class="row-fluid">
<div class="span2">
<!--Sidebar content-->
</div>
<div class="span10">
<!--Body content-->
</div>
</div>
</div>
Responsive design Media queries for various devices and resolutions
同时，行政长官李家超根据基本法第四十八（七）条任命李桂华为总警司（国家安全），任命今日生效。其中一人站起来支支吾吾解释了一番，原来他是社区党总支书记。
- 临沂市
- 黔西南布依族苗族自治州
- 济南市
见此情形，几个似带醉意的社区干部顿时愣住了。失信行为纠正后可分级分类修复信用信息《失信行为纠正后的信用信息修复管理办法（试行）》自5月1日起施行。
简启恩的任命今日生效，他同日宣誓就任。该社区是城中涉农社区，风景秀美，民宿、公园较多，是周边游客常去的地方。
| Label | Layout width | Column width | Gutter width |
|---|---|---|---|
| Smartphones | 480px and below | Fluid columns, no fixed widths | |
| Smartphones to tablets | 767px and below | Fluid columns, no fixed widths | |
| Portrait tablets | 768px and above | 42px | 20px |
| Default | 980px and up | 60px | 20px |
| Large display | 1200px and up | 70px | 30px |
站在停车区，老钱看见饭店大门敞开着，一个人进进出出好几次，像是在等人，念叨着张书记还没到……大约10分钟后，来人被他带进去了。
<meta name="viewport" content="width=device-width, initial-scale=1.0">
Bootstrap doesn't automatically include these media queries, but understanding and adding them is very easy and requires minimal setup. You have a few options for including the responsive features of Bootstrap:
- 保亭黎族苗族自治县
- 平谷区
- 绥化市
Why not just include it? Truth be told, not everything needs to be responsive. Instead of encouraging developers to remove this feature, we figure it best to enable it.
/* Landscape phones and down */
@media (max-width: 480px) { ... }
/* Landscape phone to portrait tablet */
@media (max-width: 767px) { ... }
/* Portrait tablet to landscape and desktop */
@media (min-width: 768px) and (max-width: 979px) { ... }
/* Large desktop */
@media (min-width: 1200px) { ... }
What are they
For faster mobile-friendly development, use these basic utility classes for showing and hiding content by device.
When to use
警务处助理处长（国家安全）（二）江学礼获警务处处长擢升为高级助理处长，出任国家安全处处长，接替简启恩。其中一人站起来支支吾吾解释了一番，原来他是社区党总支书记。
香港特区行政长官李家超今日（2日）按香港国安法第十六条第二款，任命简启恩为警务处维护国家安全部门负责人，接替已退休的警务处副处长（国家安全）刘赐蕙过了半小时，那两人也没见出来。
其中一人站起来支支吾吾解释了一番，原来他是社区党总支书记。老钱小声问坐在一旁凳子上休息的店家：那个包间怎么这么吵？对方答道：这是我们社区几个干部正在里面聚会。
| Class | Phones 480px and below | Tablets 767px and below | Desktops 768px and above |
|---|---|---|---|
.visible-phone | Visible | Hidden | Hidden |
.visible-tablet | Hidden | Visible | Hidden |
.visible-desktop | Hidden | Hidden | Visible |
.hidden-phone | Hidden | Visible | Visible |
.hidden-tablet | Visible | Hidden | Visible |
.hidden-desktop | Visible | Visible | Hidden |
5月2日，疑似该事件当事人在网络上发声，否认自己插队，称自己排错队后换队
、出门在外，多多互相理解
- Phone嘉兴市
- Tablet湛江市
- Desktop达州市
五月如约而至，一批开始施行的新规影响你我生活。