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.
.span3 columns should be placed within a .span6.
<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>
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.
去年6月，看中短视频风口和足球风口的董路投身体育短视频创业。”“青春很短，我想活得像电影一样。
<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>
The default and simple 940px-wide, centered layout for just about any website or page provided by a single <div class="container">.
<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>
Media queries allow for custom CSS based on a number of conditions—ratios, widths, display type, etc—but usually focuses around min-width and max-width.
因而UGC的呈现方式简直太适合不过，它足够接地气，恰好弥补了大多文案空洞、缺乏温度的不足。短短几个月内，他组建了一支130人的团队，并在2015年上半年招募了200个白场代理商和127个夜场代理商。
多年前，王薇曾对低质量的UGC内容有过“工业废水论”。雷军这一说只不过是谦词，谦虚是中国人的性格使然，也是一种传统美德。
| 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 |
前有神奇百货95后CEO王凯歆，破产复出之后成为了朋友圈微商;后有地铁扫码的姑娘们自称“创业者”，在多次叨扰乘客后产生冲突被拳脚相加。
<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: 767px) { ... }
/* Portrait tablet to landscape and desktop */
@media (min-width: 768px) and (max-width: 979px) { ... }
/* Large desktop */
@media (min-width: 1200px) { ... }
For faster mobile-friendly development, use these basic utility classes for showing and hiding content by device.
部分供应商开始对乐淘有了信心，他们按照吊牌价6折的价格，把货拉到乐淘的仓库里，乐淘再按照8折进行销售，卖完结款，没卖完的退货给供应商。 根据永安行招股书，2014年-2016年公司实现总收入分别为3.81亿元、6.2亿元和7.74亿元，同比增幅则分别为66.42%、62.81%及24.93%;同期净利润分别是0.68亿、0.93亿元和1.17亿元，增幅分别为90.3%、28.17%、28.38%。
张旭豪：投资人也是充分的竞争。而消费者一旦开始对某种商品进行抢购，所有以前理智的购买心理都会消失，此时企业及时使用“饥饿营销”，也会为其带来无法预料的效果。
该公司在一份递交给监管机构的文件中声称，它的指导价格区间为每股12.1万韩元到15.7万韩元，IPO规模约为2.05万亿韩元到2.66万亿韩元。因此，如果一辆车停在ETCP停车场15分钟内还没有人将车租走，附近运营站就会派人把车开到运营中心去，以减少停车费用，并对车辆进行维护和充电。
| 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 |