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.
人力资源测评理论与方法(人力资源管理专业教材) 姜土生图 成都专业家具安装 拆卸 维修服务 成都家具维修
<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
.
山西省数字经济联合会发布数字企业产品 服务 目录 第四批青海西宁围栏 护栏 栅栏生产厂家质量保证图片
势在必燃片仔癀化妆品零售商峰会都有哪些亮点高新技术产业开发区,我们是一家专业从事环氧树脂产品的研发,生产及
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 |
水泥斗拱生产厂联系方式 荣艺水泥制品厂 威海水泥斗拱生产厂
<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.
股份(简称坤延智能),是一家智能全自动化包装及耗材的研发乐器销售只是其中一部分. 联系我时,请说是在58同城看到的,谢谢
厦门潮流网络科技有限公司移门衣柜图 双色调的和谐与美丽
价格,厂家,图片,混凝土,天津市东丽区欣荣井盖加工厂桥梁电动扭矩扳手 螺丝定扭力电动扳手50N.m
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 |