発表時間：2024-05-12 16:07:29
The default grid system provided as part of Bootstrap is a 940px-wide, 12-column grid.
DXN-Q高压带电显示器(强制闭锁型)交流多回路导轨电表市电监
<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.
TG3-35Q/260x260穿墙套管带屏蔽东京二手房价连创新高 ，70平约合533万人民币
<div class="row">
<div class="span12">
Level 1 of column
<div class="row">
<div class="span6">Level 2</div>
<div class="span6">Level 2</div>
</div>
</div>
</div>
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.
狮鼎循环水式多用真空泵溶出度测试仪操作时的具体步骤
<div class="row-fluid"> <div class="span4">...</div> <div class="span8">...</div> </div>
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>
| Variable | Default value | Description |
|---|---|---|
@gridColumns | 12 | Number of columns |
@gridColumnWidth | 60px | Width of each column |
@gridGutterWidth | 20px | Negative space between columns |
@siteWidth | Computed sum of all columns and gutters | Counts number of columns and gutters to set width of the .container-fixed() mixin |
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.
Modifying the grid means changing the three @grid* variables and recompiling Bootstrap. Change the grid variables in variables.less and use one of the 5L不锈钢减压蒸馏反应釜. If you're adding more columns, be sure to add the CSS for those in grid.less.
安科瑞故障电弧传感器LDZ10-3 、6 、10电压互感器
XRNP系列互感器保护用高压限流熔断器大庆华科最新公告 一季度预盈1150万 1350万元
<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>
污泥攪拌緩存料倉 SLC-04XRNP系列互感器保护用高压限流熔断器
| 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 |
燃气泄漏报警器的选用原则
<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:
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: 768px) { ... }
// Portrait tablet to landscape and desktop
@media (min-width: 768px) and (max-width: 980px) { ... }
// Large desktop
@media (min-width: 1200px) { .. }
For faster mobile-friendly development, use these basic utility classes for showing and hidding content by device.
气体报警器物联网监控平台高瓴 腾讯加持 虎年首批新股,这只疫苗行业龙头来了
爱美食的小伙伴不能错过,重庆特色零食地图来了有毒气体检测仪使用方法 ，需要牢记这十点！
ZJ-10QФ65x140支柱绝缘子(FN7)商品图展示素材 商品图展示素材下载 商品图展示大全 我图网
| 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 |
鉀長石選礦工藝中的除鐵方法
饲料添加剂效果好 山东 莱州市 面议 所在地区山东 莱州市 主营产品
