1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Extend · Twitter Bootstrap</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<!-- 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 HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<!-- Le fav and touch icons -->
<link rel="shortcut icon" href="assets/ico/favicon.ico">
<link rel="apple-touch-icon-precomposed" sizes="144x144" href="assets/ico/apple-touch-icon-144-precomposed.png">
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="assets/ico/apple-touch-icon-114-precomposed.png">
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="assets/ico/apple-touch-icon-72-precomposed.png">
<link rel="apple-touch-icon-precomposed" href="assets/ico/apple-touch-icon-57-precomposed.png">
</head>
<body data-spy="scroll" data-target=".bs-docs-sidebar">
<!-- Navbar
================================================== -->
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<button type="button" 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>
</button>
<a class="brand" href="./index.html">Bootstrap</a>
<div class="nav-collapse collapse">
<ul class="nav">
<li class="">
<a href="./index.html">Home</a>
</li>
<li class="">
<a href="./getting-started.html">Get started</a>
</li>
<li class="">
<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</a>
</li>
<li class="">
<a href="./customize.html">Customize</a>
</li>
</ul>
</div>
</div>
</div>
</div>
<!-- Subhead
================================================== -->
<header class="jumbotron subhead" id="overview">
<div class="container">
<h1>Extending Bootstrap</h1>
<p class="lead">Extend Bootstrap to take advantage of included styles and components, as well as LESS variables and mixins.</p>
<div>
</header>
<div class="container">
<!-- Docs nav
================================================== -->
<div class="row">
<div class="span3 bs-docs-sidebar">
<ul class="nav nav-list bs-docs-sidenav">
<li><a href="#built-with-less"><i class="icon-chevron-right"></i> Built with LESS</a></li>
<li><a href="#compiling"><i class="icon-chevron-right"></i> Compiling Bootstrap</a></li>
<li><a href="#static-assets"><i class="icon-chevron-right"></i> Use as static assets</a></li>
</ul>
</div>
<div class="span9">
<!-- BUILT WITH LESS
================================================== -->
<section id="built-with-less">
<div class="page-header">
<h1>Built with LESS</h1>
</div>
<img style="float: right; height: 36px; margin: 10px 20px 20px" src="assets/img/less-logo-large.png" alt="LESS CSS">
<p class="lead">Bootstrap is made with LESS at its core, a dynamic stylesheet language created by our good friend, <a href="http://cloudhead.io">Alexis Sellier</a>. It makes developing systems-based CSS faster, easier, and more fun.</p>
<h3>Why LESS?</h3>
<p>One of Bootstrap's creators wrote a quick <a href="http://www.wordsbyf.at/2012/03/08/why-less/">blog post about this</a>, summarized here:</p>
<ul>
<li>Bootstrap compiles faster ~6x faster with Less compared to Sass</li>
<li>Less is written in JavaScript, making it easier to us to dive in and patch compared to Ruby with Sass.</li>
<li>Less is more; we want to feel like we're writing CSS and making Bootstrap approachable to all.</li>
</ul>
<h3>What's included?</h3>
<p>As an extension of CSS, LESS includes variables, mixins for reusable snippets of code, operations for simple math, nesting, and even color functions.</p>
<h3>Learn more</h3>
<p>Visit the official website at <a href="http://lesscss.org">http://lesscss.org</a> to learn more.</p>
</section>
<!-- COMPILING LESS AND BOOTSTRAP
================================================== -->
<section id="compiling">
<div class="page-header">
<h1>Compiling Bootstrap with Less</h1>
</div>
<p class="lead">Since our CSS is written with Less and utilizes variables and mixins, it needs to be compiled for final production implementation. Here's how.</p>
<div class="alert alert-info">
<strong>Note:</strong> If you're submitting a pull request to GitHub with modified CSS, you <strong>must</strong> recompile the CSS via any of these methods.
</div>
<h2>Tools for compiling</h2>
<h3>Node with makefile</h3>
<p>Install the LESS command line compiler, JSHint, Recess, and uglify-js globally with npm by running the following command:</p>
<pre>$ npm install -g less jshint recess uglify-js</pre>
<p>Once installed just run <code>make</code> from the root of your bootstrap directory and you're all set.</p>
<p>Additionally, if you have <a href="https://github.com/mynyml/watchr">watchr</a> installed, you may run <code>make watch</code> to have bootstrap automatically rebuilt every time you edit a file in the bootstrap lib (this isn't required, just a convenience method).</p>
<h3>Command line</h3>
<p>Install the LESS command line tool via Node and run the following command:</p>
<pre>$ lessc ./less/bootstrap.less > bootstrap.css</pre>
<p>Be sure to include <code>--compress</code> in that command if you're trying to save some bytes!</p>
<h3>Javascript</h3>
<p><a href="http://lesscss.org/">Download the latest Less.js</a> and include the path to it (and Bootstrap) in the <code><head></code>.</p>
<pre class="prettyprint">
<link rel="stylesheet/less" href="/path/to/bootstrap.less">
<script src="/path/to/less.js"></script>
</pre>
<p>To recompile the .less files, just save them and reload your page. Less.js compiles them and stores them in local storage.</p>
<h3>Unofficial Mac app</h3>
<p><a href="http://incident57.com/less/">The unofficial Mac app</a> watches directories of .less files and compiles the code to local files after every save of a watched .less file. If you like, you can toggle preferences in the app for automatic minifying and which directory the compiled files end up in.</p>
<h3>More apps</h3>
<h4><a href="http://crunchapp.net/" target="_blank">Crunch</a></h4>
<p>Crunch is a great looking LESS editor and compiler built on Adobe Air.</p>
<h4><a href="http://incident57.com/codekit/" target="_blank">CodeKit</a></h4>
<p>Created by the same guy as the unofficial Mac app, CodeKit is a Mac app that compiles LESS, SASS, Stylus, and CoffeeScript.</p>
<h4><a href="http://wearekiss.com/simpless" target="_blank">Simpless</a></h4>
<p>Mac, Linux, and Windows app for drag and drop compiling of LESS files. Plus, the <a href="https://github.com/Paratron/SimpLESS" target="_blank">source code is on GitHub</a>.</p>
</section>
<!-- Static assets
================================================== -->
<section id="static-assets">
<div class="page-header">
<h1>Use as static assets</h1>
</div>
<p class="lead"><a href="./getting-started.html">Quickly start</a> any web project by dropping in the compiled or minified CSS and JS. Layer on custom styles separately for easy upgrades and maintenance moving forward.</p>
<h3>Setup file structure</h3>
<p>Download the latest compiled Bootstrap and place into your project. For example, you might have something like this:</p>
<pre class="prettyprint">
app/
├── layouts/
└── templates/
public/
├── css/
│ ├── bootstrap.min.css
├── js/
│ ├── bootstrap.min.js
└── img/
├── glyphicons-halflings.png
└── glyphicons-halflings-white.png
</pre>
<h3>Utilize starter template</h3>
<p>Copy the following base HTML to get started.</p>
<pre class="prettyprint linenums">
<html>
<head>
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="public/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<h1>Hello, world!</h1>
<!-- Bootstrap -->
<script src="public/js/bootstrap.min.js"></script>
</body>
</html>
</pre>
<h3>Layer on custom code</h3>
<p>Work in your custom CSS, JS, and more as necessary to make Bootstrap your own with your own separate CSS and JS files.</p>
<pre class="prettyprint linenums">
<html>
<head>
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="public/css/bootstrap.min.css" rel="stylesheet">
<!-- Project -->
<link href="public/css/application.css" rel="stylesheet">
</head>
<body>
<h1>Hello, world!</h1>
<!-- Bootstrap -->
<script src="public/js/bootstrap.min.js"></script>
<!-- Project -->
<script src="public/js/application.js"></script>
</body>
</html>
</pre>
</section>
</div>
</div>
</div>
<!-- Footer
================================================== -->
<footer class="footer">
<div class="container">
<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>. Documentation licensed under <a href="http://creativecommons.org/licenses/by/3.0/">CC BY 3.0</a>.</p>
<p>Icons from <a href="http://glyphicons.com">Glyphicons Free</a>, licensed under <a href="http://creativecommons.org/licenses/by/3.0/">CC BY 3.0</a>.</p>
<ul class="footer-links">
<li><a href="http://blog.getbootstrap.com">Read the blog</a></li>
<li><a href="https://github.com/twitter/bootstrap/issues?state=open">Submit issues</a></li>
<li><a href="https://github.com/twitter/bootstrap/wiki">Roadmap and changelog</a></li>
</ul>
</div>
</footer>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>
<script src="assets/js/jquery.js"></script>
<script src="assets/js/google-code-prettify/prettify.js"></script>
<script src="assets/js/bootstrap-transition.js"></script>
<script src="assets/js/bootstrap-alert.js"></script>
<script src="assets/js/bootstrap-modal.js"></script>
<script src="assets/js/bootstrap-dropdown.js"></script>
<script src="assets/js/bootstrap-scrollspy.js"></script>
<script src="assets/js/bootstrap-tab.js"></script>
<script src="assets/js/bootstrap-tooltip.js"></script>
<script src="assets/js/bootstrap-popover.js"></script>
<script src="assets/js/bootstrap-button.js"></script>
<script src="assets/js/bootstrap-collapse.js"></script>
<script src="assets/js/bootstrap-carousel.js"></script>
<script src="assets/js/bootstrap-typeahead.js"></script>
<script src="assets/js/bootstrap-affix.js"></script>
<script src="assets/js/application.js"></script>
</body>
</html>
|
