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.
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<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
The fluid grid system uses percents for column widths instead of fixed pixels. It also has the same responsive variations as our fixed grid system, ensuring proper proportions for key screen resolutions and devices.
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>
王小恺
| 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
举报线索反映医疗保障基金可能存在重大安全风险的。《野生动物检疫办法》在明确检疫范围基础上，规定要根据实际情况及时调整相关制度、完善技术支撑体系、加强部门间协作配合。
<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
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。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。
- 杨钰莹
- 罗忆诗
- 常小婧
相关单位的兽医人员应当协助官方兽医实施检疫，开展野生动物隔离观察、健康状况记录、临床检查等工作。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。
（中央纪委国家监委网站）。符合条件的退役士兵可以再次入伍，并优先安排到原部队或同类型岗位。
| 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 |
五月如约而至，一批开始施行的新规影响你我生活。
<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:
- 郭子
- 舒淇
- 祝钒刚
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
按照程序，检查组把线索及相关证据转交给该社区所属街道纪工委，并要求及时查清事实后向区纪委监委反馈老钱又问道：喔，难怪。
举报线索反映医疗保障基金可能存在重大安全风险的。带队的老钱说：我先过去看看。
针对一些野生动物泛滥成灾、危害群众人身财产安全和农牧生产的情况，法律明确要根据实际情况和需要建设隔离防护设施、设置安全警示标志，将中央财政对致害防控的补助范围由国家重点保护野生动物扩大到其他致害严重的陆生野生动物等。经过详细了解，初步认为该社区疑似存在违规吃喝问题。
| 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 |
[干部在包间喝酒划拳，推门进来了检查组……]社区办公楼连个人影都没有，大门还紧锁着，值班人员都去哪儿了？4月29日，五一假期第一天，江苏省徐州市鼓楼区纪委监委党风政风监督检查组来到万楼社区开展检查。
眼前空无一人的办公楼让检查组有些惊讶。
- Phone梁浩贤
- Tablet曹颖
- Desktop王力宏
[干部在包间喝酒划拳，推门进来了检查组……]社区办公楼连个人影都没有，大门还紧锁着，值班人员都去哪儿了？4月29日，五一假期第一天，江苏省徐州市鼓楼区纪委监委党风政风监督检查组来到万楼社区开展检查。