<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Bootstrap, from Twitter</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="description" content=""> <meta name="author" content=""> <!-- Le HTML5 shim, for IE6-8 support of HTML elements --> <!--[if lt IE 9]> <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <!-- Le styles --> <link href="assets/css/bootstrap.css" rel="stylesheet"> <link href="assets/css/bootstrap-responsive.css" rel="stylesheet"> <link href="assets/css/docs.css" rel="stylesheet"> <link href="assets/js/google-code-prettify/prettify.css" rel="stylesheet"> <!-- Le fav and touch icons --> <link rel="shortcut icon" href="assets/ico/favicon.ico"> <link rel="apple-touch-icon" href="assets/ico/apple-touch-icon.png"> <link rel="apple-touch-icon" sizes="72x72" href="assets/ico/apple-touch-icon-72x72.png"> <link rel="apple-touch-icon" sizes="114x114" href="assets/ico/apple-touch-icon-114x114.png"> </head> <body data-spy="scroll" data-target=".subnav" data-offset="50"> <!-- Navbar ================================================== --> <div class="navbar navbar-fixed-top"> <div class="navbar-inner"> <div class="container"> <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse"> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </a> <a class="brand" href="./index.html">Bootstrap</a> <div class="nav-collapse"> <ul class="nav"> <li class=""> <a href="./index.html">Overview</a> </li> <li class="active"> <a href="./scaffolding.html">Scaffolding</a> </li> <li class=""> <a href="./base-css.html">Base CSS</a> </li> <li class=""> <a href="./components.html">Components</a> </li> <li class=""> <a href="./javascript.html">Javascript plugins</a> </li> <li class=""> <a href="./less.html">Using LESS</a> </li> <li class="divider-vertical"></li> <li class=""> <a href="./download.html">Customize</a> </li> <li class=""> <a href="./examples.html">Examples</a> </li> </ul> </div> </div> </div> </div> <div class="container"> <!-- Masthead ================================================== --> <header class="jumbotron subhead" id="overview"> <h1>Scaffolding</h1> <p class="lead">Bootstrap is built on a responsive 12-column grid. We've also included fixed- and fluid-width layouts based on that system.</p> <div class="subnav"> <ul class="nav nav-pills"> <li><a href="#grid-system">Grid system</a></li> <li><a href="#layouts">Layouts</a></li> <li><a href="#responsive">Responsive design</a></li> </ul> </div> </header> <!-- Grid system ================================================== --> <section id="grid-system"> <div class="page-header"> <h1>Grid system <small>12 columns with a responsive twist</small></h1> </div> <h2>Default 940px grid</h2> <div class="row show-grid"> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> <div class="span1">1</div> </div> <div class="row show-grid"> <div class="span4">4</div> <div class="span4">4</div> <div class="span4">4</div> </div> <div class="row show-grid"> <div class="span4">4</div> <div class="span8">8</div> </div> <div class="row show-grid"> <div class="span6">6</div> <div class="span6">6</div> </div> <div class="row show-grid"> <div class="span12">12</div> </div> <div class="row"> <div class="span4"> <p>The default grid system provided as part of Bootstrap is a <strong>940px-wide, 12-column grid</strong>.</p> <p>It also has four responsive variations for various devices and resolutions: phone, tablet portrait, table landscape and small desktops, and large widescreen desktops.</p> </div> <div class="span4"> <pre class="prettyprint linenums"> <div class="row"> <div class="span4">...</div> <div class="span8">...</div> </div> </pre> </div> <div class="span4"> <p>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.</p> </div> </div><!-- /row --> <br> <h2>Offsetting columns</h2> <div class="row show-grid"> <div class="span4">4</div> <div class="span4 offset4">4 offset 4</div> </div><!-- /row --> <div class="row show-grid"> <div class="span3 offset3">3 offset 3</div> <div class="span3 offset3">3 offset 3</div> </div><!-- /row --> <div class="row show-grid"> <div class="span8 offset4">8 offset 4</div> </div><!-- /row --> <pre class="prettyprint linenums"> <div class="row"> <div class="span4">...</div> <div class="span4 offset4">...</div> </div> </pre> <br> <h2>Nesting columns</h2> <div class="row"> <div class="span6"> <p>With the static (non-fluid) grid system in Bootstrap, nesting is easy. To nest your content, just add a new <code>.row</code> and set of <code>.span*</code> columns within an existing <code>.span*</code> column.</p> <h4>Example</h4> <div class="row show-grid"> <div class="span6"> Level 1 of column <div class="row show-grid"> <div class="span3"> Level 2 </div> <div class="span3"> Level 2 </div> </div> </div> </div> </div> <div class="span6"> <pre class="prettyprint linenums"> <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> </pre> </div> </div> <h2>Grid customization</h2> <table class="table table-bordered table-striped"> <thead> <tr> <th>Variable</th> <th>Default value</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>@gridColumns</code></td> <td>12</td> <td>Number of columns</td> </tr> <tr> <td><code>@gridColumnWidth</code></td> <td>60px</td> <td>Width of each column</td> </tr> <tr> <td><code>@gridGutterWidth</code></td> <td>20px</td> <td>Negative space between columns</td> </tr> <tr> <td><code>@siteWidth</code></td> <td><em>Computed sum of all columns and gutters</em></td> <td>Counts number of columns and gutters to set width of the <code>.container-fixed()</code> mixin</td> </tr> </tbody> </table> <div class="row"> <div class="span4"> <h3>Variables in LESS</h3> <p>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.</p> </div> <div class="span4"> <h3>How to customize</h3> <p>Modifying the grid means changing the three <code>@grid*</code> variables and recompiling Bootstrap. Change the grid variables in variables.less and use one of the <a href="less.html#compiling">four ways documented to recompile</a>. If you're adding more columns, be sure to add the CSS for those in grid.less.</p> </div> <div class="span4"> <h3>Staying responsive</h3> <p>Customization of the grid only works at the default level, the 940px grid. To maintain the responsive aspects of Bootstrap, you'll also have to customize the grids in responsive.less.</p> </div> </div><!-- /row --> </section> <!-- Layouts (Default and fluid) ================================================== --> <section id="layouts"> <div class="page-header"> <h1>Layouts <small>Basic templates to create webpages</small></h1> </div> <div class="row"> <div class="span6"> <h2>Fixed layout</h2> <p>The default and simple 940px-wide, centered layout for just about any website or page provided by a single <code><div class="container"></code>.</p> <div class="minicon-layout"> <div class="minicon-layout-body"></div> </div> <pre class="prettyprint linenums"> <body> <div class="container"> ... </div> </body> </pre> </div><!-- /col --> <div class="span6"> <h2>Fluid layout</h2> <p><code><div class="container-fluid"></code> gives flexible page structure, min- and max-widths, and a left-hand sidebar. It's great for apps and docs.</p> <div class="minicon-layout fluid"> <div class="minicon-layout-sidebar"></div> <div class="minicon-layout-body"></div> </div> <pre class="prettyprint linenums"> <div class="container-fluid"> <div class="row-fluid"> <div class="span2"> <!--Sidebar content--> </div> <div class="span10"> <!--Body content--> </div> </div> </div> </pre> </div><!-- /col --> </div><!-- /row --> </section> <!-- Responsive design ================================================== --> <section id="responsive"> <div class="page-header"> <h1>Responsive design <small>Media queries for various devices and resolutions</small></h1> </div> <!-- Supported devices --> <div class="row"> <div class="span4"> <img src="assets/img/responsive-illustrations.png" alt="Responsive devices"> </div> <div class="span8"> <h2>Supported devices</h2> <p>Bootstrap supports a handful of media queries to help make your projects more appropriate on different devices and screen resolutions. Here's what's included:</p> <table class="table table-bordered table-striped"> <thead> <tr> <th>Label</th> <th>Layout width</th> <th>Column width</th> <th>Gutter width</th> </tr> </thead> <tbody> <tr> <td>Smartphones</td> <td>480px and below</td> <td class="muted" colspan="2">Fluid columns, no fixed widths</td> </tr> <tr> <td>Portrait tablets</td> <td>480px to 768px</td> <td class="muted" colspan="2">Fluid columns, no fixed widths</td> </tr> <tr> <td>Landscape tablets</td> <td>768px to 980px</td> <td>44px</td> <td>20px</td> </tr> <tr> <td>Default</td> <td>980px and up</td> <td>60px</td> <td>20px</td> </tr> <tr> <td>Large display</td> <td>1210px and up</td> <td>70px</td> <td>30px</td> </tr> </tbody> </table> <h3>What they do</h3> <p>Media queries allow for custom CSS based on a number of conditions—ratios, widths, display type, etc—but usually focuses around <code>min-width</code> and <code>max-width</code>.</p> <ul> <li>Modify the width of column in our grid</li> <li>Stack elements instead of float wherever necessary</li> <li>Resize headings and text to be more appropriate for devices</li> </ul> </div> </div> <br> <!-- Media query code --> <h2>Using the media queries</h2> <div class="row"> <div class="span5"> <p>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:</p> <ol> <li>Use the compiled responsive version, bootstrap-responsive.css</li> <li>Add @import "responsive.less" and recompile Bootstrap</li> <li>Modify and recompile responsive.less as a separate</li> </ol> <p><strong>Why not just include it?</strong> Truth be told, not everything needs to be responsive. Instead of encouraging developers to remove this feature, we figure it best to enable it.</p> </div> <div class="span7"> <pre class="prettyprint linenums"> // 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) { .. } </pre> </div> </div> </section> <!-- Footer ================================================== --> <footer class="footer"> <p class="pull-right"><a href="#">Back to top</a></p> <p>Designed and built with all the love in the world <a href="http://twitter.com/twitter" target="_blank">@twitter</a> by <a href="http://twitter.com/mdo" target="_blank">@mdo</a> and <a href="http://twitter.com/fat" target="_blank">@fat</a>.</p> <p>Code licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0" target="_blank">Apache License v2.0</a>. 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