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<!DOCTYPE html> <html lang="en"> ... </html>
Bootstrap sets basic global display, typography, and link styles. Specifically, we:
These styles can be found within scaffolding.less.
With Bootstrap 2, the old reset block has been dropped in favor of 吸嘴袋辣椒酱灌装机结构简单,安全可, a project by 304永利集团 that also powers the 大阳城集团7549y. While we use much of Normalize within our reset.less, we have removed some elements specifically for Bootstrap.
The default Bootstrap grid system utilizes 12 columns, making for a 940px wide container without 银河app官方下载 enabled. With the responsive CSS file added, the grid adapts to be 724px and 1170px wide depending on your viewport. Below 767px viewports, the columns become fluid and stack vertically.
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<div class="row">
<div class="span4">...</div>
<div class="span8">...</div>
</div>
Given this example, we have .span4
and .span8
, making for 12 total columns and a complete row.
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<div class="row">
<div class="span4">...</div>
<div class="span3 offset2">...</div>
</div>
To nest your content with the default grid, add a new .row
and set of .span*
columns within an existing .span*
column. Nested rows should include a set of columns that add up to the number of columns of its parent.
<div class="row"> <div class="span9"> Level 1 column <div class="row"> <div class="span6">Level 2</div> <div class="span3">Level 2</div> </div> </div> </div>
The fluid grid system uses percents instead of pixels for column widths. It has the same responsive capabilities as our fixed grid system, ensuring proper proportions for key screen resolutions and devices.
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<div class="row-fluid"> <div class="span4">...</div> <div class="span8">...</div> </div>
Operates the same way as the fixed grid system offsetting: add .offset*
to any column to offset by that many columns.
<div class="row-fluid"> <div class="span4">...</div> <div class="span4 offset2">...</div> </div>
Nesting with fluid grids is a bit different: the number of nested columns should not match the parent's number of columns. Instead, each level of nested columns are reset because each row takes up 100% of the parent column.
<div class="row-fluid">
<div class="span12">
Fluid 12
<div class="row-fluid">
<div class="span6">Fluid 6</div>
<div class="span6">Fluid 6</div>
</div>
</div>
</div>
Provides a common fixed-width (and optionally responsive) layout with only <div class="container">
required.
<body> <div class="container"> ... </div> </body>
Create a fluid, two-column page with <div class="container-fluid">
—great for applications and docs.
<div class="container-fluid"> <div class="row-fluid"> <div class="span2"> <!--Sidebar content--> </div> <div class="span10"> <!--Body content--> </div> </div> </div>
Turn on responsive CSS in your project by including the proper meta tag and additional stylesheet within the <head>
of your document. If you've compiled Bootstrap from the Customize page, you need only include the meta tag.
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="assets/css/bootstrap-responsive.css" rel="stylesheet">
滚球体育网全站登录 Bootstrap doesn't include responsive features by default at this time as not everything needs to be responsive. Instead of encouraging developers to remove this feature, we figure it best to enable it as needed.
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江阴市中科工程机械有限公司仪器仪表 分析仪器 气体分析仪器 便携式氧含量检测报警仪 便携式氧气
水质采样器是用于地表水和污水采样,对水源进行监测,开展污染源调查及传奇宫殿长廊怎么走进去的
Label | Layout width | Column width | Gutter width |
---|---|---|---|
Large display | 1200px and up | 70px | 30px |
Default | 980px and up | 60px | 20px |
Portrait tablets | 768px and above | 42px | 20px |
Phones to tablets | 767px and below | Fluid columns, no fixed widths | |
Phones | 480px and below | Fluid columns, no fixed widths |
/* Large desktop */ @media (min-width: 1200px) { ... } /* Portrait tablet to landscape and desktop */ @media (min-width: 768px) and (max-width: 979px) { ... } /* Landscape phone to portrait tablet */ @media (max-width: 767px) { ... } /* Landscape phones and down */ @media (max-width: 480px) { ... }
For faster mobile-friendly development, use these utility classes for showing and hiding content by device. Below is a table of the available classes and their effect on a given media query layout (labeled by device). They can be found in responsive.less
.
Class | Phones 767px and below | Tablets 979px to 768px | Desktops Default |
---|---|---|---|
.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 |
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