302 lines
11 KiB
Markdown
302 lines
11 KiB
Markdown
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---
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layout: docs
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title: Typography
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description: Documentation and examples for Bootstrap typography, including global settings, headings, body text, lists, and more.
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group: content
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toc: true
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---
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## Global settings
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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/).
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- 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.
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- 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.
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- Use the `$font-family-base`, `$font-size-base`, and `$line-height-base` attributes as our typographic base applied to the `<body>`.
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- Set the global link color via `$link-color` and apply link underlines only on `:hover`.
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- Use `$body-bg` to set a `background-color` on the `<body>` (`#fff` by default).
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These styles can be found within `_reboot.scss`, and the global variables are defined in `_variables.scss`. Make sure to set `$font-size-base` in `rem`.
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## Headings
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All HTML headings, `<h1>` through `<h6>`, are available.
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<table>
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<thead>
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<tr>
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<th>Heading</th>
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<th>Example</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>
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{{ "`<h1></h1>`" | markdownify }}
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</td>
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<td><span class="h1">h1. Bootstrap heading</span></td>
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</tr>
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<tr>
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<td>
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{{ "`<h2></h2>`" | markdownify }}
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</td>
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<td><span class="h2">h2. Bootstrap heading</span></td>
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</tr>
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<tr>
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<td>
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{{ "`<h3></h3>`" | markdownify }}
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</td>
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<td><span class="h3">h3. Bootstrap heading</span></td>
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</tr>
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<tr>
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<td>
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{{ "`<h4></h4>`" | markdownify }}
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</td>
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<td><span class="h4">h4. Bootstrap heading</span></td>
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</tr>
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<tr>
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<td>
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{{ "`<h5></h5>`" | markdownify }}
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</td>
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<td><span class="h5">h5. Bootstrap heading</span></td>
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</tr>
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<tr>
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<td>
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{{ "`<h6></h6>`" | markdownify }}
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</td>
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<td><span class="h6">h6. Bootstrap heading</span></td>
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</tr>
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</tbody>
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</table>
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{% highlight html %}
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<h1>h1. Bootstrap heading</h1>
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<h2>h2. Bootstrap heading</h2>
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<h3>h3. Bootstrap heading</h3>
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<h4>h4. Bootstrap heading</h4>
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<h5>h5. Bootstrap heading</h5>
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<h6>h6. Bootstrap heading</h6>
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{% endhighlight %}
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`.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.
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{% capture example %}
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<p class="h1">h1. Bootstrap heading</p>
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<p class="h2">h2. Bootstrap heading</p>
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<p class="h3">h3. Bootstrap heading</p>
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<p class="h4">h4. Bootstrap heading</p>
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<p class="h5">h5. Bootstrap heading</p>
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<p class="h6">h6. Bootstrap heading</p>
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{% endcapture %}
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{% include example.html content=example %}
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### Customizing headings
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Use the included utility classes to recreate the small secondary heading text from Bootstrap 3.
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{% capture example %}
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<h3>
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Fancy display heading
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<small class="text-muted">With faded secondary text</small>
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</h3>
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{% endcapture %}
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{% include example.html content=example %}
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## Display headings
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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. Keep in mind these headings are not responsive by default, but it's possible to enable [responsive font sizes](#responsive-font-sizes).
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<div class="bd-example bd-example-type">
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<table class="table">
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<tbody>
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<tr>
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<td><span class="display-1">Display 1</span></td>
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</tr>
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<tr>
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<td><span class="display-2">Display 2</span></td>
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</tr>
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<tr>
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<td><span class="display-3">Display 3</span></td>
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</tr>
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<tr>
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<td><span class="display-4">Display 4</span></td>
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</tr>
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</tbody>
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</table>
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</div>
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{% highlight html %}
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<h1 class="display-1">Display 1</h1>
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<h1 class="display-2">Display 2</h1>
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<h1 class="display-3">Display 3</h1>
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<h1 class="display-4">Display 4</h1>
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{% endhighlight %}
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## Lead
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Make a paragraph stand out by adding `.lead`.
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{% capture example %}
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<p class="lead">
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Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Duis mollis, est non commodo luctus.
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</p>
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{% endcapture %}
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{% include example.html content=example %}
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## Inline text elements
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Styling for common inline HTML5 elements.
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{% capture example %}
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<p>You can use the mark tag to <mark>highlight</mark> text.</p>
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<p><del>This line of text is meant to be treated as deleted text.</del></p>
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<p><s>This line of text is meant to be treated as no longer accurate.</s></p>
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<p><ins>This line of text is meant to be treated as an addition to the document.</ins></p>
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<p><u>This line of text will render as underlined</u></p>
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<p><small>This line of text is meant to be treated as fine print.</small></p>
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<p><strong>This line rendered as bold text.</strong></p>
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<p><em>This line rendered as italicized text.</em></p>
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{% endcapture %}
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{% include example.html content=example %}
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`.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.
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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.
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## Text utilities
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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/).
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## Abbreviations
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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.
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Add `.initialism` to an abbreviation for a slightly smaller font-size.
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{% capture example %}
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<p><abbr title="attribute">attr</abbr></p>
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<p><abbr title="HyperText Markup Language" class="initialism">HTML</abbr></p>
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{% endcapture %}
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{% include example.html content=example %}
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## Blockquotes
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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.
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{% capture example %}
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<blockquote class="blockquote">
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<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
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</blockquote>
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{% endcapture %}
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{% include example.html content=example %}
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### Naming a source
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Add a `<footer class="blockquote-footer">` for identifying the source. Wrap the name of the source work in `<cite>`.
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{% capture example %}
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<blockquote class="blockquote">
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<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
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<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
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</blockquote>
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{% endcapture %}
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{% include example.html content=example %}
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### Alignment
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Use text utilities as needed to change the alignment of your blockquote.
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{% capture example %}
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<blockquote class="blockquote text-center">
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<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
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<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
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</blockquote>
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{% endcapture %}
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{% include example.html content=example %}
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{% capture example %}
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<blockquote class="blockquote text-right">
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<p class="mb-0">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
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<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
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</blockquote>
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{% endcapture %}
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{% include example.html content=example %}
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## Lists
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### Unstyled
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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.
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{% capture example %}
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<ul class="list-unstyled">
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<li>Lorem ipsum dolor sit amet</li>
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<li>Consectetur adipiscing elit</li>
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<li>Integer molestie lorem at massa</li>
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<li>Facilisis in pretium nisl aliquet</li>
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<li>Nulla volutpat aliquam velit
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<ul>
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<li>Phasellus iaculis neque</li>
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<li>Purus sodales ultricies</li>
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<li>Vestibulum laoreet porttitor sem</li>
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<li>Ac tristique libero volutpat at</li>
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</ul>
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</li>
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<li>Faucibus porta lacus fringilla vel</li>
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<li>Aenean sit amet erat nunc</li>
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<li>Eget porttitor lorem</li>
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</ul>
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{% endcapture %}
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{% include example.html content=example %}
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### Inline
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Remove a list's bullets and apply some light `margin` with a combination of two classes, `.list-inline` and `.list-inline-item`.
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{% capture example %}
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<ul class="list-inline">
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<li class="list-inline-item">Lorem ipsum</li>
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<li class="list-inline-item">Phasellus iaculis</li>
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<li class="list-inline-item">Nulla volutpat</li>
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</ul>
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{% endcapture %}
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{% include example.html content=example %}
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### Description list alignment
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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.
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{% capture example %}
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<dl class="row">
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<dt class="col-sm-3">Description lists</dt>
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<dd class="col-sm-9">A description list is perfect for defining terms.</dd>
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<dt class="col-sm-3">Euismod</dt>
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<dd class="col-sm-9">
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<p>Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit.</p>
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<p>Donec id elit non mi porta gravida at eget metus.</p>
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</dd>
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<dt class="col-sm-3">Malesuada porta</dt>
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<dd class="col-sm-9">Etiam porta sem malesuada magna mollis euismod.</dd>
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<dt class="col-sm-3 text-truncate">Truncated term is truncated</dt>
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<dd class="col-sm-9">Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</dd>
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<dt class="col-sm-3">Nesting</dt>
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<dd class="col-sm-9">
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<dl class="row">
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<dt class="col-sm-4">Nested definition list</dt>
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<dd class="col-sm-8">Aenean posuere, tortor sed cursus feugiat, nunc augue blandit nunc.</dd>
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</dl>
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</dd>
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</dl>
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{% endcapture %}
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{% include example.html content=example %}
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## Responsive font sizes
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Bootstrap v4.3 ships with the option to enable responsive font sizes, allowing text to scale more naturally across device and viewport sizes. <abbr title="Responsive font sizes">RFS</abbr> can be enabled by changing the `$enable-responsive-font-sizes` Sass variable to `true` and recompiling Bootstrap.
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To support <abbr title="Responsive font sizes">RFS</abbr>, we use a Sass mixin to replace our normal `font-size` properties. Responsive font sizes will be compiled into `calc()` functions with a mix of `rem` and viewport units to enable the responsive scaling behavior. More about <abbr title="Responsive font sizes">RFS</abbr> and its configuration can be found on its [GitHub repository](https://github.com/twbs/rfs/tree/v8.0.4).
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