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Bootstrap/site/docs/4.1/content/typography.md
Mark Otto 0e920ce3f4 Reorganize docs for easier deploys
With the current docs directory setup, I'm making too many mistakes and have to manually address path changes and directory moves on deploy. This makes for a frustrating experience developing locally and shipping releases. With this PR, we're basically back to the same setup from v3—duplicating the dist directory into our docs directory. Not the most ideal, but very straightforward for me as the release manager.
2018-07-11 23:30:46 -07:00

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---
layout: docs
title: Typography
description: Documentation and examples for Bootstrap typography, including global settings, headings, body text, lists, and more.
group: content
toc: true
---
## Global settings
Bootstrap sets basic global display, typography, and link styles. When more control is needed, check out the [textual utility classes]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/text/).
- Use a [native font stack]({{ site.baseurl }}/docs/{{ site.docs_version }}/content/reboot/#native-font-stack) that selects the best `font-family` for each OS and device.
- For a more inclusive and accessible type scale, we assume the browser default root `font-size` (typically 16px) so visitors can customize their browser defaults as needed.
- Use the `$font-family-base`, `$font-size-base`, and `$line-height-base` attributes as our typographic base applied to the `<body>`.
- Set the global link color via `$link-color` and apply link underlines only on `:hover`.
- Use `$body-bg` to set a `background-color` on the `<body>` (`#fff` by default).
These styles can be found within `_reboot.scss`, and the global variables are defined in `_variables.scss`. Make sure to set `$font-size-base` in `rem`.
## Headings
All HTML headings, `<h1>` through `<h6>`, are available.
<table>
<thead>
<tr>
<th>Heading</th>
<th>Example</th>
</tr>
</thead>
<tbody>
<tr>
<td>
{{ "`<h1></h1>`" | markdownify }}
</td>
<td><span class="h1">h1. Bootstrap heading</span></td>
</tr>
<tr>
<td>
{{ "`<h2></h2>`" | markdownify }}
</td>
<td><span class="h2">h2. Bootstrap heading</span></td>
</tr>
<tr>
<td>
{{ "`<h3></h3>`" | markdownify }}
</td>
<td><span class="h3">h3. Bootstrap heading</span></td>
</tr>
<tr>
<td>
{{ "`<h4></h4>`" | markdownify }}
</td>
<td><span class="h4">h4. Bootstrap heading</span></td>
</tr>
<tr>
<td>
{{ "`<h5></h5>`" | markdownify }}
</td>
<td><span class="h5">h5. Bootstrap heading</span></td>
</tr>
<tr>
<td>
{{ "`<h6></h6>`" | markdownify }}
</td>
<td><span class="h6">h6. Bootstrap heading</span></td>
</tr>
</tbody>
</table>
{% highlight html %}
<h1>h1. Bootstrap heading</h1>
<h2>h2. Bootstrap heading</h2>
<h3>h3. Bootstrap heading</h3>
<h4>h4. Bootstrap heading</h4>
<h5>h5. Bootstrap heading</h5>
<h6>h6. Bootstrap heading</h6>
{% endhighlight %}
`.h1` through `.h6` classes are also available, for when you want to match the font styling of a heading but cannot use the associated HTML element.
{% capture example %}
<p class="h1">h1. Bootstrap heading</p>
<p class="h2">h2. Bootstrap heading</p>
<p class="h3">h3. Bootstrap heading</p>
<p class="h4">h4. Bootstrap heading</p>
<p class="h5">h5. Bootstrap heading</p>
<p class="h6">h6. Bootstrap heading</p>
{% endcapture %}
{% include example.html content=example %}
### Customizing headings
Use the included utility classes to recreate the small secondary heading text from Bootstrap 3.
<div class="bd-example">
<span class="h3">
Fancy display heading
<small class="text-muted">With faded secondary text</small>
</span>
</div>
{% highlight html %}
<h3>
Fancy display heading
<small class="text-muted">With faded secondary text</small>
</h3>
{% endhighlight %}
## Display headings
Traditional heading elements are designed to work best in the meat of your page content. When you need a heading to stand out, consider using a **display heading**—a larger, slightly more opinionated heading style.
<div class="bd-example bd-example-type">
<table class="table">
<tbody>
<tr>
<td><span class="display-1">Display 1</span></td>
</tr>
<tr>
<td><span class="display-2">Display 2</span></td>
</tr>
<tr>
<td><span class="display-3">Display 3</span></td>
</tr>
<tr>
<td><span class="display-4">Display 4</span></td>
</tr>
</tbody>
</table>
</div>
{% highlight html %}
<h1 class="display-1">Display 1</h1>
<h1 class="display-2">Display 2</h1>
<h1 class="display-3">Display 3</h1>
<h1 class="display-4">Display 4</h1>
{% endhighlight %}
## Lead
Make a paragraph stand out by adding `.lead`.
{% capture example %}
<p class="lead">
Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Duis mollis, est non commodo luctus.
</p>
{% endcapture %}
{% include example.html content=example %}
## Inline text elements
Styling for common inline HTML5 elements.
{% capture example %}
<p>You can use the mark tag to <mark>highlight</mark> text.</p>
<p><del>This line of text is meant to be treated as deleted text.</del></p>
<p><s>This line of text is meant to be treated as no longer accurate.</s></p>
<p><ins>This line of text is meant to be treated as an addition to the document.</ins></p>
<p><u>This line of text will render as underlined</u></p>
<p><small>This line of text is meant to be treated as fine print.</small></p>
<p><strong>This line rendered as bold text.</strong></p>
<p><em>This line rendered as italicized text.</em></p>
{% endcapture %}
{% include example.html content=example %}
`.mark` and `.small` classes are also available to apply the same styles as `<mark>` and `<small>` while avoiding any unwanted semantic implications that the tags would bring.
While not shown above, 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.
## Text utilities
Change text alignment, transform, style, weight, and color with our [text utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/text/) and [color utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/colors/).
## Abbreviations
Stylized implementation of HTML's `<abbr>` element for abbreviations and acronyms to show the expanded version on hover. Abbreviations have a default underline and gain a help cursor to provide additional context on hover and to users of assistive technologies.
Add `.initialism` to an abbreviation for a slightly smaller font-size.
{% capture example %}
<p><abbr title="attribute">attr</abbr></p>
<p><abbr title="HyperText Markup Language" class="initialism">HTML</abbr></p>
{% endcapture %}
{% include example.html content=example %}
## Blockquotes
For quoting blocks of content from another source within your document. Wrap `<blockquote class="blockquote">` around any <abbr title="HyperText Markup Language">HTML</abbr> as the quote.
{% capture example %}
<blockquote class="blockquote">
<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
</blockquote>
{% endcapture %}
{% include example.html content=example %}
### Naming a source
Add a `<footer class="blockquote-footer">` for identifying the source. Wrap the name of the source work in `<cite>`.
{% capture example %}
<blockquote class="blockquote">
<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
</blockquote>
{% endcapture %}
{% include example.html content=example %}
### Alignment
Use text utilities as needed to change the alignment of your blockquote.
{% capture example %}
<blockquote class="blockquote text-center">
<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
</blockquote>
{% endcapture %}
{% include example.html content=example %}
{% capture example %}
<blockquote class="blockquote text-right">
<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
</blockquote>
{% endcapture %}
{% include example.html content=example %}
## Lists
### Unstyled
Remove the default `list-style` and left margin on list items (immediate children only). **This only applies to immediate children list items**, meaning you will need to add the class for any nested lists as well.
{% capture example %}
<ul class="list-unstyled">
<li>Lorem ipsum dolor sit amet</li>
<li>Consectetur adipiscing elit</li>
<li>Integer molestie lorem at massa</li>
<li>Facilisis in pretium nisl aliquet</li>
<li>Nulla volutpat aliquam velit
<ul>
<li>Phasellus iaculis neque</li>
<li>Purus sodales ultricies</li>
<li>Vestibulum laoreet porttitor sem</li>
<li>Ac tristique libero volutpat at</li>
</ul>
</li>
<li>Faucibus porta lacus fringilla vel</li>
<li>Aenean sit amet erat nunc</li>
<li>Eget porttitor lorem</li>
</ul>
{% endcapture %}
{% include example.html content=example %}
### Inline
Remove a list's bullets and apply some light `margin` with a combination of two classes, `.list-inline` and `.list-inline-item`.
{% capture example %}
<ul class="list-inline">
<li class="list-inline-item">Lorem ipsum</li>
<li class="list-inline-item">Phasellus iaculis</li>
<li class="list-inline-item">Nulla volutpat</li>
</ul>
{% endcapture %}
{% include example.html content=example %}
### Description list alignment
Align terms and descriptions horizontally by using our grid system's predefined classes (or semantic mixins). For longer terms, you can optionally add a `.text-truncate` class to truncate the text with an ellipsis.
{% capture example %}
<dl class="row">
<dt class="col-sm-3">Description lists</dt>
<dd class="col-sm-9">A description list is perfect for defining terms.</dd>
<dt class="col-sm-3">Euismod</dt>
<dd class="col-sm-9">
<p>Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit.</p>
<p>Donec id elit non mi porta gravida at eget metus.</p>
</dd>
<dt class="col-sm-3">Malesuada porta</dt>
<dd class="col-sm-9">Etiam porta sem malesuada magna mollis euismod.</dd>
<dt class="col-sm-3 text-truncate">Truncated term is truncated</dt>
<dd class="col-sm-9">Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</dd>
<dt class="col-sm-3">Nesting</dt>
<dd class="col-sm-9">
<dl class="row">
<dt class="col-sm-4">Nested definition list</dt>
<dd class="col-sm-8">Aenean posuere, tortor sed cursus feugiat, nunc augue blandit nunc.</dd>
</dl>
</dd>
</dl>
{% endcapture %}
{% include example.html content=example %}
## Responsive typography
*Responsive typography* refers to scaling text and components by simply adjusting the root element's `font-size` within a series of media queries. Bootstrap doesn't do this for you, but it's fairly easy to add if you need it.
Here's an example of it in practice. Choose whatever `font-size`s and media queries you wish.
{% highlight scss %}
html {
font-size: 1rem;
}
@include media-breakpoint-up(sm) {
html {
font-size: 1.2rem;
}
}
@include media-breakpoint-up(md) {
html {
font-size: 1.4rem;
}
}
@include media-breakpoint-up(lg) {
html {
font-size: 1.6rem;
}
}
{% endhighlight %}