Typografia 16.4.2013 / FCV Sisältö Typography Headings All HTML headings, <h1> through <h6> are available. h1. Heading 1 h2. Heading 2 h3. Heading 3 h4. Heading 4 h5. Heading 5 h6. Heading 6 Built with Less The typographic scale is based on two LESS variables in variables.less: @baseFontSize and @baseLineHeight. The first is the base font-size used throughout and the second is the base line-height. We use those variables and some simple math to create the margins, paddings, and line-heights of all our type and more. Customize them and Bootstrap adapts. Body copy Bootstrap’s global default font-size is 14px, with a line-height of 1.7em. This is applied to the <body> and all paragraphs. In addition, <p> (paragraphs) receive a bottom margin of half their line-height (9px by default). Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Nullam id dolor id nibh ultricies vehicula. <p>...</p> Lead body copy Make a paragraph stand out by adding .lead. Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Duis mollis, est non commodo luctus. <p class="lead">...</p> Emphasis Make use of HTML’s default emphasis tags with lightweight styles. <em> For emphasizing a snippet of text with stress The following snippet of text is rendered as italicized text. <em>rendered as italicized text</em> <strong> For emphasizing a snippet of text with important The following snippet of text is rendered as bold text. <strong>rendered as bold text</strong> <small> For de-emphasizing inline or blocks of text, use the small tag. This line of text is meant to be treated as fine print. <p> <small>This line of text is meant to be treated as fine print.</small> </p> Note: Feel free to use <b> and <i> in HTML5. <b> is meant to highlight words or phrases without conveying additional importance while <i> is mostly for voice, technical terms, etc. Notice Styles Use the <p> tag with .success, .warning, .info or .error classes. Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. <p class="success">...</p> Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. <p class="info">...</p> Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. <p class="warning">...</p> Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. <p class="error">...</p> Abbreviations Stylized implementation of HTML’s <abbr> element for abbreviations and acronyms to show the expanded version on hover. Abbreviations with a title attribute have a light dotted bottom border and a help cursor on hover, providing additional context on hover. <abbr> For expanded text on long hover of an abbreviation, include the title attribute. An abbreviation of the word attribute is attr. <abbr title="attribute">attr</abbr> <abbr class="initialism"> Add .initialism to an abbreviation for a slightly smaller font-size. HTML is the best thing since sliced bread. <abbr title="attribute" class="initialism">attr</abbr> Addresses Present contact information for the nearest ancestor or the entire body of work. <address> Preserve formatting by ending all lines with <br>. Twitter, Inc. 795 Folsom Ave, Suite 600 San Francisco, CA 94107 P: (123) 456-7890 Full Name first.last@gmail.com <address> <strong>Twitter, Inc.</strong><br> 795 Folsom Ave, Suite 600<br> San Francisco, CA 94107<br> <abbr title="Phone">P:</abbr> (123) 456-7890 </address> <address> <strong>Full Name</strong><br> <a href="mailto:#">first.last@gmail.com</a> </address> Blockquotes For quoting blocks of content from another source within your document. Default blockqoute Wrap <blockquote> around any HTML as the quote. For straight quotes we recommend a <p>. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante. <blockquote> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p> </blockquote> Blockquote options Style and content changes for simple variations on a standard blockquote. Naming a source Add <small> tag for identifying the source. Wrap the name of the source work in <cite>. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante. Someone famous in Source Title <blockquote> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p> <small>Someone famous <cite title="Source Title">Source Title</cite></small> </blockquote> Alternate displays Use .pull-right for a floated, right-aligned blockquote. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante. Someone famous in Source Title <blockquote class="pull-right"> ... </blockquote> Lists Unordered A list of items in which the order does not explicitly matter. Lorem ipsum dolor sit amet Nulla volutpat aliquam velit Phasellus iaculis neque Purus sodales ultricies Vestibulum laoreet porttitor sem Ac tristique libero volutpat at Faucibus porta lacus fringilla vel Eget porttitor lorem <ul> <li>...</li> </ul> Ordered A list of items in which the order does explicitly matter. Lorem ipsum dolor sit amet Consectetur adipiscing elit Integer molestie lorem at massa Facilisis in pretium nisl aliquet Nulla volutpat aliquam velit Faucibus porta lacus fringilla vel Aenean sit amet erat nunc Eget porttitor lorem <ol> <li>...</li> </ol> Unstyled A list of items with no list-style or additional left padding. Lorem ipsum dolor sit amet Nulla volutpat aliquam velit Phasellus iaculis neque Purus sodales ultricies Vestibulum laoreet porttitor sem Ac tristique libero volutpat at Faucibus porta lacus fringilla vel Eget porttitor lorem <ul class="unstyled"> <li>...</li> </ul> Description A list of terms with their associated descriptions. Description lists A description list is perfect for defining terms. Euismod Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit. Donec id elit non mi porta gravida at eget metus. Malesuada porta Etiam porta sem malesuada magna mollis euismod. <dl> <dt>...</dt> <dd>...</dd> </dl> Note: Horizontal description lists will truncate terms that are too long to fit in the left column fix text-overflow. In narrower viewports, they will change to the default stacked layout. Horizontal description Make terms and descriptions in <dl> line up side-by-side. Description lists A description list is perfect for defining terms. Euismod Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit. Donec id elit non mi porta gravida at eget metus. Malesuada porta Etiam porta sem malesuada magna mollis euismod. Felis euismod semper eget lacinia Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. <dl class="dl-horizontal"> <dt>...</dt> <dd>...</dd> </dl> Code Inline Wrap inline snippets of code with <code>. For example, <section> should be wrapped as inline. For example, <code><section></code> should be wrapped as inline. Note: Be sure to keep code within <pre> tags as close to the left as possible; it will render all tabs. You may optionally add the .pre-scrollable class which will set a max-height of 350px and provide a y-axis scrollbar. Basic block Use <pre> for multiple lines of code. Be sure to escape any angle brackets in the code for proper rendering. <p>Sample text here...</p> <pre> <p>Sample text here...</p> </pre> Prettify To add colored syntax highlight to the <pre> tag, then use the .prettyprint class or the .prettyprint linenums class. <?php /** Begin Debug **/ if ($gantry->countModules('debug')) : ?> <div id="rt-debug"> <div class="rt-container"> <?php echo $gantry->displayModules('debug','standard','standard'); ?> <div class="clear"></div> </div> </div> <?php /** End Debug **/ endif; ?> <pre class="prettyprint linenums"><?php /** Begin Debug **/ if ($gantry->countModules('debug')) : ?> <div id="rt-debug"> <div class="rt-container"> <?php echo $gantry->displayModules('debug','standard','standard'); ?> <div class="clear"></div> </div> </div> <?php /** End Debug **/ endif; ?></pre> Tables Default styles For basic styling—light padding and only horizontal dividers—add the base class .table to any <table>. # First Name Last Name Username 1 Mark Otto @mdo 2 Jacob Thornton @fat 3 Larry the Bird @twitter <table class="table"> … </table> Optional classes Add any of the follow classes to the .table base class. .table-striped Adds zebra-striping to any table row within the <tbody> via the :nth-child CSS selector (not available in IE7-IE8). # First Name Last Name Username 1 Mark Otto @mdo 2 Jacob Thornton @fat 3 Larry the Bird @twitter <table class="table table-striped"> … </table> .table-hover Enable a hover state on table rows within a <tbody>. # First Name Last Name Username 1 Mark Otto @mdo 2 Jacob Thornton @fat 3 Larry the Bird @twitter <table class="table table-hover"> … </table> .table-bordered Add borders and rounded corners to the table. # First Name Last Name Username 1 Mark Otto @mdo Mark Otto @TwBootstrap 2 Jacob Thornton @fat 3 Larry the Bird @twitter <table class="table table-bordered"> … </table> .table-condensed Makes tables more compact by cutting cell padding in half. # First Name Last Name Username 1 Mark Otto @mdo 2 Jacob Thornton @fat 3 Larry the Bird @twitter <table class="table table-condensed"> … </table> Optional row classes Use contextual classes to color table rows. Class Description .success Indicates a successful or positive action. .error Indicates a dangerous or potentially negative action. .info Used as an alternative to the default styles. # Product Payment Taken Status 1 TB – Monthly 01/04/2012 Approved 2 TB – Monthly 02/04/2012 Declined 3 TB – Monthly 03/04/2012 Pending 4 TB – Monthly 04/04/2012 Call in to confirm ... <tr class="success"> <td>1</td> <td>TB - Monthly</td> <td>01/04/2012</td> <td>Approved</td> </tr> ... Supported table markup List of supported table HTML elements and how they should be used. Tag Description <table> Wrapping element for displaying data in a tabular format <thead> Container element for table header rows (<tr>) to label table columns <tbody> Container element for table rows (<tr>) in the body of the table <tr> Container element for a set of table cells (<td> or <th>) that appears on a single row <td> Default table cell <th> Special table cell for column (or row, depending on scope and placement) labels Must be used within a <thead> <caption> Description or summary of what the table holds, especially useful for screen readers <table> <caption>...</caption> <thead> <tr> <th>...</th> <th>...</th> </tr> </thead> <tbody> <tr> <td>...</td> <td>...</td> </tr> </tbody> </table> Forms Default styles Individual form controls receive styling, but without any required base class on the <form> or large changes in markup. Results in stacked, left-aligned labels on top of form controls. Legend Label name Example block-level help text here. Check me out Submit <form> <legend>Legend</legend> <label>Label name</label> <input type="text" placeholder="Type something…"> <span class="help-block">Example block-level help text here.</span> <label class="checkbox"> <input type="checkbox"> Check me out </label> <button type="submit" class="btn">Submit</button> </form> Optional layouts Included with Bootstrap are three optional form layouts for common use cases. Search form Add .form-search to the form and .search-query to the <input> for an extra-rounded text input. Search <form class="form-search"> <input type="text" class="input-medium search-query"> <button type="submit" class="btn">Search</button> </form> Inline form Add .form-inline for left-aligned labels and inline-block controls for a compact layout. Remember me Sign in <form class="form-inline"> <input type="text" class="input-small" placeholder="Email"> <input type="password" class="input-small" placeholder="Password"> <label class="checkbox"> <input type="checkbox"> Remember me </label> <button type="submit" class="btn">Sign in</button> </form> Horizontal form Right align labels and float them to the left to make them appear on the same line as controls. Requires the most markup changes from a default form: Add .form-horizontal to the form Wrap labels and controls in .control-group Add .control-label to the label Wrap any associated controls in .controls for proper alignment Legend Email Password Remember me Sign in <form class="form-horizontal"> <div class="control-group"> <label class="control-label" for="inputEmail">Email</label> <div class="controls"> <input type="text" id="inputEmail" placeholder="Email"> </div> </div> <div class="control-group"> <label class="control-label" for="inputPassword">Password</label> <div class="controls"> <input type="password" id="inputPassword" placeholder="Password"> </div> </div> <div class="control-group"> <div class="controls"> <label class="checkbox"> <input type="checkbox"> Remember me </label> <button type="submit" class="btn">Sign in</button> </div> </div> </form> Supported form controls Examples of standard form controls supported in an example form layout. Inputs Most common form control, text-based input fields. Includes support for all HTML5 types: text, password, datetime, datetime-local, date, month, time, week, number, email, url, search, tel, and color. Requires the use of a specified type at all times. <input type="text" placeholder="Text input"> Textarea Form control which supports multiple lines of text. Change row attribute as necessary. <textarea rows="3"></textarea> Checkboxes and radios Checkboxes are for selecting one or several options in a list while radios are for selecting one option from many. Default (stacked) Option one is this and that—be sure to include why it’s great Option one is this and that—be sure to include why it’s great Option two can be something else and selecting it will deselect option one <label class="checkbox"> <input type="checkbox" value=""> Option one is this and that—be sure to include why it's great </label> <label class="radio"> <input type="radio" name="optionsRadios" id="optionsRadios1" value="option1" checked> Option one is this and that—be sure to include why it's great </label> <label class="radio"> <input type="radio" name="optionsRadios" id="optionsRadios2" value="option2"> Option two can be something else and selecting it will deselect option one </label> Inline checkboxes Add the .inline class to a series of checkboxes or radios for controls appear on the same line. 1 2 3 <label class="checkbox inline"> <input type="checkbox" id="inlineCheckbox1" value="option1"> 1 </label> <label class="checkbox inline"> <input type="checkbox" id="inlineCheckbox2" value="option2"> 2 </label> <label class="checkbox inline"> <input type="checkbox" id="inlineCheckbox3" value="option3"> 3 </label> Selects Use the default option or specify a multiple="multiple" to show multiple options at once. 12345 12345 <select> <option>1</option> <option>2</option> <option>3</option> <option>4</option> <option>5</option> </select> <select multiple="multiple"> <option>1</option> <option>2</option> <option>3</option> <option>4</option> <option>5</option> </select> Extending form controls Adding on top of existing browser controls, Bootstrap includes other useful form components. Prepended and appended inputs Add text or buttons before or after any text-based input. Do note that select elements are not supported here. Default options Wrap an .add-on and an input with one of two classes to prepend or append text to an input. @ .00 <div class="input-prepend"> <span class="add-on">@</span><input class="span2" id="prependedInput" size="16" type="text" placeholder="Username"> </div> <div class="input-append"> <input class="span2" id="appendedInput" size="16" type="text"><span class="add-on">.00</span> </div> Search form Search Search <form class="form-search"> <div class="input-append"> <input type="text" class="span2 search-query"> <button type="submit" class="btn">Search</button> </div> <div class="input-prepend"> <button type="submit" class="btn">Search</button> <input type="text" class="span2 search-query"> </div> </form> Combined Use both classes and two instances of .add-on to prepend and append an input. $ .00 <div class="input-prepend input-append"> <span class="add-on">$</span><input class="span2" id="appendedPrependedInput" size="16" type="text"><span class="add-on">.00</span> </div> Buttons instead of text Instead of a <span> with text, use a .btn to attach a button (or two) to an input. Go! Search Options <div class="input-append"> <input class="span2" id="appendedInputButton" size="16" type="text"><button class="btn" type="button">Go!</button> </div> <div class="input-append"> <input class="span2" id="appendedInputButtons" size="16" type="text"><button class="btn" type="button">Search</button><button class="btn" type="button">Options</button> </div> Form actions End a form with a group of actions (buttons). When placed within a .form-horizontal, the buttons will automatically indent to line up with the form controls. Save changes Cancel <div class="form-actions"> <button type="submit" class="btn btn-primary">Save changes</button> <button type="button" class="btn">Cancel</button> </div> Help text Inline and block level support for help text that appears around form controls. Inline help Inline help text <input type="text"><span class="help-inline">Inline help text</span> Block help A longer block of help text that breaks onto a new line and may extend beyond one line. <input type="text"><span class="help-block">A longer block of help text that breaks onto a new line and may extend beyond one line.</span> Control sizing Use relative sizing classes like .input-large or match your inputs to the grid column sizes using .span* classes. Relative sizing <input class="input-mini" type="text" placeholder=".input-mini"> <input class="input-small" type="text" placeholder=".input-small"> <input class="input-medium" type="text" placeholder=".input-medium"> <input class="input-large" type="text" placeholder=".input-large"> <input class="input-xlarge" type="text" placeholder=".input-xlarge"> <input class="input-xxlarge" type="text" placeholder=".input-xxlarge"> Note: In future versions, we’ll be altering the use of these relative input classes to match our button sizes. For example, .input-large will increase the padding and font-size of an input. Uneditable inputs Present data in a form that’s not editable without using actual form markup. Some value here <span class="input-xlarge uneditable-input">Some value here</span> Form control states Provide feedback to users or visitors with basic feedback states on form controls and labels. Input focus We remove the default outline styles on some form controls and apply a box-shadow in its place for :focus. <input class="input-xlarge" id="focusedInput" type="text" value="This is focused..."> Disabled inputs Add the disabled attribute on an input to prevent user input and trigger a slightly different look. <input class="input-xlarge" id="disabledInput" type="text" placeholder="Disabled input here..." disabled> Validation states Bootstrap includes validation styles for error, warning, and success messages. To use, add the appropriate class to the surrounding .control-group. Input with warning Something may have gone wrong Input with error Please correct the error Input with info Username is taken Input with success Woohoo! <div class="control-group warning"> <label class="control-label" for="inputWarning">Input with warning</label> <div class="controls"> <input type="text" id="inputWarning"> <span class="help-inline">Something may have gone wrong</span> </div> </div> <div class="control-group error"> <label class="control-label" for="inputError">Input with error</label> <div class="controls"> <input type="text" id="inputError"> <span class="help-inline">Please correct the error</span> </div> </div> <div class="control-group info"> <label class="control-label" for="inputError">Input with info</label> <div class="controls"> <input type="text" id="inputError"> <span class="help-inline">Username is taken</span> </div> </div> <div class="control-group success"> <label class="control-label" for="inputSuccess">Input with success</label> <div class="controls"> <input type="text" id="inputSuccess"> <span class="help-inline">Woohoo!</span> </div> </div> Buttons Default buttons Button styles can be applied to anything with the .btn class applied. However, typically you’ll want to apply these to only <a> and <button> elements for the best rendering. Button class=”” Description Default btn Standard gray button with gradient Primary btn btn-primary Provides extra visual weight and identifies the primary action in a set of buttons Info btn btn-info Used as an alternative to the default styles Success btn btn-success Indicates a successful or positive action Warning btn btn-warning Indicates caution should be taken with this action Danger btn btn-danger Indicates a dangerous or potentially negative action Inverse btn btn-inverse Alternate dark gray button, not tied to a semantic action or use Link btn btn-link Deemphasize a button by making it look like a link while maintaining button behavior Cross browser compatibility IE9 doesn’t crop background gradients on rounded corners, so we remove it. Related, IE9 jankifies disabled button elements, rendering text gray with a nasty text-shadow that we cannot fix. Button sizes Fancy larger or smaller buttons? Add .btn-large, .btn-small, or .btn-mini for additional sizes. Large button Large button Default button Default button Small button Small button Mini button Mini button <p> <button class="btn btn-large btn-primary" type="button">Large button</button> <button class="btn btn-large" type="button">Large button</button> </p> <p> <button class="btn btn-primary" type="button">Default button</button> <button class="btn" type="button">Default button</button> </p> <p> <button class="btn btn-small btn-primary" type="button">Small button</button> <button class="btn btn-small" type="button">Small button</button> </p> <p> <button class="btn btn-mini btn-primary" type="button">Mini button</button> <button class="btn btn-mini" type="button">Mini button</button> </p> Create block level buttons—those that span the full width of a parent— by adding .btn-block. Block level button Block level button <button class="btn btn-large btn-block btn-primary" type="button">Block level button</button> <button class="btn btn-large btn-block" type="button">Block level button</button> Disabled state Make buttons look unclickable by fading them back 50%. Anchor element Add the .disabled class to <a> buttons. Primary link Link <a href="#" class="btn btn-large btn-primary disabled">Primary link</a> <a href="#" class="btn btn-large disabled">Link</a> Note: We use .disabled as a utility class here, similar to the common .active class, so no prefix is required. Button element Add the disabled attribute to <button> buttons. Primary button Button <button type="button" class="btn btn-large btn-primary disabled" disabled="disabled">Primary button</button> <button type="button" class="btn btn-large" disabled>Button</button> One class, multiple tags Use the .btn class on an <a>, <button>, or <input> element. Link Button <a class="btn" href="">Link</a> <button class="btn" type="submit">Button</button> <input class="btn" type="button" value="Input"> <input class="btn" type="submit" value="Submit"> As a best practice, try to match the element for your context to ensure matching cross-browser rendering. If you have an input, use an <input type="submit"> for your button. Icons Font Awesome Font Awesome is a pictographic language of web-related actions which delivers 220 icons. The Font Awesome webfont, CSS, and LESS files are licensed under CC BY 3.0 and you can find the full examples of usage at Font Awesome – http://fortawesome.github.com/Font-Awesome Add .icon-CLASS_NAME to any element, best used with a <span>. Web Icons icon-adjust icon-asterisk icon-ban-circle icon-bar-chart icon-barcode icon-beaker icon-bell icon-bolt icon-book icon-bookmark icon-bookmark-empty icon-briefcase icon-bullhorn icon-calendar icon-camera icon-camera-retro icon-certificate icon-check icon-check-empty icon-cloud icon-cog icon-cogs icon-comment icon-comment-alt icon-comments icon-comments-alt icon-credit-card icon-dashboard icon-download icon-download-alt icon-edit icon-envelope icon-envelope-alt icon-exclamation-sign icon-external-link icon-eye-close icon-eye-open icon-facetime-video icon-film icon-filter icon-fire icon-flag icon-folder-close icon-folder-open icon-gift icon-glass icon-globe icon-group icon-hdd icon-headphones icon-heart icon-heart-empty icon-home icon-inbox icon-info-sign icon-key icon-leaf icon-legal icon-lemon icon-lock icon-unlock icon-magic icon-magnet icon-map-marker icon-minus icon-minus-sign icon-money icon-move icon-music icon-off icon-ok icon-ok-circle icon-ok-sign icon-pencil icon-picture icon-plane icon-plus icon-plus-sign icon-print icon-pushpin icon-qrcode icon-question-sign icon-random icon-refresh icon-remove icon-remove-circle icon-remove-sign icon-reorder icon-resize-horizontal icon-resize-vertical icon-retweet icon-road icon-rss icon-screenshot icon-search icon-share icon-share-alt icon-shopping-cart icon-signal icon-signin icon-signout icon-sitemap icon-sort icon-sort-down icon-sort-up icon-star icon-star-empty icon-star-half icon-tag icon-tags icon-tasks icon-thumbs-down icon-thumbs-up icon-time icon-tint icon-trash icon-trophy icon-truck icon-umbrella icon-upload icon-upload-alt icon-user icon-user-md icon-volume-off icon-volume-down icon-volume-up icon-warning-sign icon-wrench icon-zoom-in icon-zoom-out Text Editor Icons icon-file icon-cut icon-copy icon-paste icon-save icon-undo icon-repeat icon-paper-clip icon-text-height icon-text-width icon-align-left icon-align-center icon-align-right icon-align-justify icon-indent-left icon-indent-right icon-font icon-bold icon-italic icon-strikethrough icon-underline icon-link icon-columns icon-table icon-th-large icon-th icon-th-list icon-list icon-list-ol icon-list-ul icon-list-alt Directional Icons icon-arrow-down icon-arrow-left icon-arrow-right icon-arrow-up icon-chevron-down icon-circle-arrow-down icon-circle-arrow-left icon-circle-arrow-right icon-circle-arrow-up icon-chevron-left icon-caret-down icon-caret-left icon-caret-right icon-caret-up icon-chevron-right icon-hand-down icon-hand-left icon-hand-right icon-hand-up icon-chevron-up Video Player Icons icon-play-circle icon-play icon-pause icon-stop icon-step-backward icon-fast-backward icon-backward icon-forward icon-fast-forward icon-step-forward icon-eject icon-fullscreen icon-resize-full icon-resize-small Social Icons icon-phone icon-phone-sign icon-facebook icon-facebook-sign icon-twitter icon-twitter-sign icon-github icon-github-sign icon-linkedin icon-linkedin-sign icon-pinterest icon-pinterest-sign icon-google-plus icon-google-plus-sign icon-sign-blank <span class="icon-CLASS_NAME"> ... </span> <span class="icon-download"> ... </span> The documented typography above is a modified version of the reference guide available at: http://twitter.github.com/bootstrap/base-css.html
