Bootstrap/docs/4.0/content/reboot.md

---
layout: docs
title: Reboot
description: Reboot, a collection of element-specific CSS changes in a single file, kickstart Bootstrap to provide an elegant, consistent, and simple baseline to build upon.
group: content
redirect_from: "/docs/4.0/content/"
toc: true
---

## Approach

Reboot builds upon Normalize, providing many HTML elements with somewhat opinionated styles using only element selectors. Additional styling is done only with classes. For example, we reboot some `<table>` styles for a simpler baseline and later provide `.table`, `.table-bordered`, and more.

Here are our guidelines and reasons for choosing what to override in Reboot:

- Update some browser default values to use `rem`s instead of `em`s for scalable component spacing.
- Avoid `margin-top`. Vertical margins can collapse, yielding unexpected results. More importantly though, a single direction of `margin` is a simpler mental model.
- For easier scaling across device sizes, block elements should use `rem`s for `margin`s.
- Keep declarations of `font`-related properties to a minimum, using `inherit` whenever possible.

## Page defaults

The `<html>` and `<body>` elements are updated to provide better page-wide defaults. More specifically:

- The `box-sizing` is globally set on every element—including `*::before` and `*::after`, to `border-box`. This ensures that the declared width of element is never exceeded due to padding or border.
  - No base `font-size` is declared on the `<html>`, but `16px` is assumed (the browser default). `font-size: 1rem` is applied on the `<body>` for easy responsive type-scaling via media queries while respecting user preferences and ensuring a more accessible approach.
- The `<body>` also sets a global `font-family`, `line-height`, and `text-align`. This is inherited later by some form elements to prevent font inconsistencies.
- For safety, the `<body>` has a declared `background-color`, defaulting to `#fff`.

## Native font stack

The default web fonts (Helvetica Neue, Helvetica, and Arial) have been dropped in Bootstrap 4 and replaced with a "native font stack" for optimum text rendering on every device and OS. Read more about [native font stacks in this *Smashing Magazine* article](https://www.smashingmagazine.com/2015/11/using-system-ui-fonts-practical-guide/).

{% highlight sass %}
$font-family-sans-serif:
  // Safari for OS X and iOS (San Francisco)
  -apple-system,
  // Chrome < 56 for OS X (San Francisco)
  BlinkMacSystemFont,
  // Windows
  "Segoe UI",
  // Android
  "Roboto",
  // Basic web fallback
  "Helvetica Neue", Arial, sans-serif,
  // Emoji fonts
  "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !default;
{% endhighlight %}

This `font-family` is applied to the `<body>` and automatically inherited globally throughout Bootstrap. To switch the global `font-family`, update `$font-family-base` and recompile Bootstrap.

## Headings and paragraphs

All heading elements—e.g., `<h1>`—and `<p>` are reset to have their `margin-top` removed. Headings have `margin-bottom: .5rem` added and paragraphs `margin-bottom: 1rem` for easy spacing.

<table>
  <thead>
    <tr>
      <th>Heading</th>
      <th>Example</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>
        {% markdown %}`<h1></h1>`{% endmarkdown %}
      </td>
      <td><span class="h1">h1. Bootstrap heading</span></td>
    </tr>
    <tr>
      <td>
        {% markdown %}`<h2></h2>`{% endmarkdown %}
      </td>
      <td><span class="h2">h2. Bootstrap heading</span></td>
    </tr>
    <tr>
      <td>
        {% markdown %}`<h3></h3>`{% endmarkdown %}
      </td>
      <td><span class="h3">h3. Bootstrap heading</span></td>
    </tr>
    <tr>
      <td>
        {% markdown %}`<h4></h4>`{% endmarkdown %}
      </td>
      <td><span class="h4">h4. Bootstrap heading</span></td>
    </tr>
    <tr>
      <td>
        {% markdown %}`<h5></h5>`{% endmarkdown %}
      </td>
      <td><span class="h5">h5. Bootstrap heading</span></td>
    </tr>
    <tr>
      <td>
        {% markdown %}`<h6></h6>`{% endmarkdown %}
      </td>
      <td><span class="h6">h6. Bootstrap heading</span></td>
    </tr>
  </tbody>
</table>

## Lists

All lists—`<ul>`, `<ol>`, and `<dl>`—have their `margin-top` removed and a `margin-bottom: 1rem`. Nested lists have no `margin-bottom`.

<div class="bd-example">
{% markdown %}
* Lorem ipsum dolor sit amet
* Consectetur adipiscing elit
* Integer molestie lorem at massa
* Facilisis in pretium nisl aliquet
* Nulla volutpat aliquam velit
  * Phasellus iaculis neque
  * Purus sodales ultricies
  * Vestibulum laoreet porttitor sem
  * Ac tristique libero volutpat at
* Faucibus porta lacus fringilla vel
* Aenean sit amet erat nunc
* Eget porttitor lorem

1. Lorem ipsum dolor sit amet
2. Consectetur adipiscing elit
3. Integer molestie lorem at massa
4. Facilisis in pretium nisl aliquet
5. Nulla volutpat aliquam velit
6. Faucibus porta lacus fringilla vel
7. Aenean sit amet erat nunc
8. Eget porttitor lorem
{% endmarkdown %}
</div>

For simpler styling, clear hierarchy, and better spacing, description lists have updated `margin`s. `<dd>`s reset `margin-left` to `0` and add `margin-bottom: .5rem`. `<dt>`s are **bolded**.

<div class="bd-example">
{% markdown %}
<dl>
  <dt>Description lists</dt>
  <dd>A description list is perfect for defining terms.</dd>
  <dt>Euismod</dt>
  <dd>Vestibulum id ligula porta felis euismod semper eget lacinia odio sem.</dd>
  <dd>Donec id elit non mi porta gravida at eget metus.</dd>
  <dt>Malesuada porta</dt>
  <dd>Etiam porta sem malesuada magna mollis euismod.</dd>
</dl>
{% endmarkdown %}
</div>

## Preformatted text

The `<pre>` element is reset to remove its `margin-top` and use `rem` units for its `margin-bottom`.

<div class="bd-example">
{% markdown %}
<pre>
.example-element {
  margin-bottom: 1rem;
}
</pre>
{% endmarkdown %}
</div>

## Tables

Tables are slightly adjusted to style `<caption>`s, collapse borders, and ensure consistent `text-align` throughout. Additional changes for borders, padding, and more come with [the `.table` class]({{ site.baseurl }}/docs/{{ site.docs_version }}/content/tables/).

<div class="bd-example">
  <table>
    <caption>
      This is an example table, and this is its caption to describe the contents.
    </caption>
    <thead>
      <tr>
        <th>Table heading</th>
        <th>Table heading</th>
        <th>Table heading</th>
        <th>Table heading</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>Table cell</td>
        <td>Table cell</td>
        <td>Table cell</td>
        <td>Table cell</td>
      </tr>
      <tr>
        <td>Table cell</td>
        <td>Table cell</td>
        <td>Table cell</td>
        <td>Table cell</td>
      </tr>
      <tr>
        <td>Table cell</td>
        <td>Table cell</td>
        <td>Table cell</td>
        <td>Table cell</td>
      </tr>
    </tbody>
  </table>
</div>

## Forms

Various form elements have been rebooted for simpler base styles. Here are some of the most notable changes:

- `<fieldset>`s have no borders, padding, or margin so they can be easily used as wrappers for individual inputs or groups of inputs.
- `<legend>`s, like fieldsets, have also been restyled to be displayed as a heading of sorts.
- `<label>`s are set to `display: inline-block` to allow `margin` to be applied.
- `<input>`s, `<select>`s, `<textarea>`s, and `<button>`s are mostly addressed by Normalize, but Reboot removes their `margin` and sets `line-height: inherit`, too.
- `<textarea>`s are modified to only be resizable vertically as horizontal resizing often "breaks" page layout.

These changes, and more, are demonstrated below.

<form class="bd-example">
  <fieldset>
    <legend>Example legend</legend>

    <p>
      <label for="input">Example input</label>
      <input type="text" id="input" placeholder="Example input">
    </p>

    <p>
      <label for="select">Example select</label>
      <select id="select">
        <option value="">Choose...</option>
        <optgroup label="Option group 1">
          <option value="">Option 1</option>
          <option value="">Option 2</option>
          <option value="">Option 3</option>
        </optgroup>
        <optgroup label="Option group 2">
          <option value="">Option 4</option>
          <option value="">Option 5</option>
          <option value="">Option 6</option>
        </optgroup>
      </select>
    </p>

    <p>
      <label>
        <input type="checkbox" value="">
        Check this checkbox
      </label>
    </p>

    <p>
      <label>
        <input type="radio" name="optionsRadios" id="optionsRadios1" value="option1" checked>
        Option one is this and that
      </label>
      <label>
        <input type="radio" name="optionsRadios" id="optionsRadios2" value="option2">
        Option two is something else that's also super long to demonstrate the wrapping of these fancy form controls.
      </label>
      <label>
        <input type="radio" name="optionsRadios" id="optionsRadios3" value="option3" disabled>
        Option three is disabled
      </label>
    </p>

    <p>
      <label for="textarea">Example textarea</label>
      <textarea id="textarea" rows="3"></textarea>
    </p>

    <p>
      <label for="date">Example date</label>
      <input type="date" id="date">
    </p>

    <p>
      <label for="time">Example time</label>
      <input type="time" id="time">
    </p>

    <p>
      <label for="output">Example output</label>
      <output name="result" id="output">100</output>
    </p>

    <p>
      <button type="submit">Button submit</button>
      <input type="submit" value="Input submit button">
      <input type="button" value="Input button">
    </p>

    <p>
      <button type="submit" disabled>Button submit</button>
      <input type="submit" value="Input submit button" disabled>
      <input type="button" value="Input button" disabled>
    </p>
  </fieldset>
</form>

## Misc elements

### Address

The `<address>` element is updated to reset the browser default `font-style` from `italic` to `normal`. `line-height` is also now inherited, and `margin-bottom: 1rem` has been added. `<address>`s are for presenting contact information for the nearest ancestor (or an entire body of work). Preserve formatting by ending lines with `<br>`.

<div class="bd-example">
  <address>
    <strong>Twitter, Inc.</strong><br>
    1355 Market St, Suite 900<br>
    San Francisco, CA 94103<br>
    <abbr title="Phone">P:</abbr> (123) 456-7890
  </address>

  <address>
    <strong>Full Name</strong><br>
    <a href="mailto:#">first.last@example.com</a>
  </address>
</div>

### Blockquote

The default `margin` on blockquotes is `1em 40px`, so we reset that to `0 0 1rem` for something more consistent with other elements.

<div class="bd-example">
  <blockquote class="blockquote">
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
    <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
  </blockquote>
</div>

### Inline elements

The `<abbr>` element receives basic styling to make it stand out amongst paragraph text.

<div class="bd-example">
  Nulla <abbr title="attribute">attr</abbr> vitae elit libero, a pharetra augue.
</div>

### Summary

The default `cursor` on summary is `text`, so we reset that to `pointer` to convey that the element can be interacted with by clicking on it.

<div class="bd-example">
  <details>
    <summary>Some details</summary>
    <p>More info about the details.</p>
  </details>

  <details open>
    <summary>Even more details</summary>
    <p>Here are even more details about the details.</p>
  </details>
</div>

## HTML5 `[hidden]` attribute

HTML5 adds [a new global attribute named `[hidden]`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/hidden), which is styled as `display: none` by default. Borrowing an idea from [PureCSS](https://purecss.io/), we improve upon this default by making `[hidden] { display: none !important; }` to help prevent its `display` from getting accidentally overridden. While `[hidden]` isn't natively supported by IE10, the explicit declaration in our CSS gets around that problem.

{% highlight html %}
<input type="text" hidden>
{% endhighlight %}

{% callout warning %}
##### jQuery incompatibility

`[hidden]` is not compatible with jQuery's `$(...).hide()` and `$(...).show()` methods. Therefore, we don't currently especially endorse `[hidden]` over other techniques for managing the `display` of elements.
{% endcallout %}

To merely toggle the visibility of an element, meaning its `display` is not modified and the element can still affect the flow of the document, use [the `.invisible` class]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/visibility/) instead.
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`---`
Massive cleanup - Simpler main nav on all pages - Back to purple masthead on homepage instead of dark graphite - Active link styles on the main nav - Cleaned up sidebar nav - New docs layout name - Homepage copy edits - Updated bright purple docs color 2015-08-15 07:45:55 +02:00			`layout: docs`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`title: Reboot`
update content docs 2017-05-28 07:16:44 +02:00			`description: Reboot, a collection of element-specific CSS changes in a single file, kickstart Bootstrap to provide an elegant, consistent, and simple baseline to build upon.`
docs rearrange 2015-08-10 08:38:16 +02:00			`group: content`
update redirect_from on docs pages 2017-06-30 23:13:20 +02:00			`redirect_from: "/docs/4.0/content/"`
update content docs 2017-05-28 07:16:44 +02:00			`toc: true`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`---`

update content docs 2017-05-28 07:16:44 +02:00			`## Approach`
more reboot updates 2015-04-17 04:33:42 +02:00
			Reboot builds upon Normalize, providing many HTML elements with somewhat opinionated styles using only element selectors. Additional styling is done only with classes. For example, we reboot some `<table>` styles for a simpler baseline and later provide `.table`, `.table-bordered`, and more.
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
more reboot updates 2015-04-17 04:33:42 +02:00			`Here are our guidelines and reasons for choosing what to override in Reboot:`

more reboot edits 2015-04-23 08:13:11 +02:00			- Update some browser default values to use `rem`s instead of `em`s for scalable component spacing.
more reboot updates 2015-04-17 04:33:42 +02:00			- Avoid `margin-top`. Vertical margins can collapse, yielding unexpected results. More importantly though, a single direction of `margin` is a simpler mental model.
			- For easier scaling across device sizes, block elements should use `rem`s for `margin`s.
reboot.md: fix typo: "to a minimal" [sic] 2015-08-21 03:37:20 +02:00			- Keep declarations of `font`-related properties to a minimum, using `inherit` whenever possible.
more reboot updates 2015-04-17 04:33:42 +02:00
			`## Page defaults`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
more reboot updates 2015-04-17 04:33:42 +02:00			The `<html>` and `<body>` elements are updated to provide better page-wide defaults. More specifically:
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
Use CSS3 pseudo elements in documentation 2017-09-08 02:06:02 +02:00			- The `box-sizing` is globally set on every element—including `::before` and `::after`, to `border-box`. This ensures that the declared width of element is never exceeded due to padding or border.
fixes #21567 2017-01-24 09:22:31 +01:00			- No base `font-size` is declared on the `<html>`, but `16px` is assumed (the browser default). `font-size: 1rem` is applied on the `<body>` for easy responsive type-scaling via media queries while respecting user preferences and ensuring a more accessible approach.
Set explicit text-align on <body> element so we can use inherit to override the default <th> text-align value 2017-06-18 06:19:36 +02:00			- The `<body>` also sets a global `font-family`, `line-height`, and `text-align`. This is inherited later by some form elements to prevent font inconsistencies.
more reboot updates 2015-04-17 04:33:42 +02:00			- For safety, the `<body>` has a declared `background-color`, defaulting to `#fff`.
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
document 2016-02-06 22:32:53 +01:00			`## Native font stack`

Fixes+tweaks to native font stack docs [skip sauce] 2016-02-08 12:53:59 +01:00			`The default web fonts (Helvetica Neue, Helvetica, and Arial) have been dropped in Bootstrap 4 and replaced with a "native font stack" for optimum text rendering on every device and OS. Read more about [native font stacks in this Smashing Magazine article](https://www.smashingmagazine.com/2015/11/using-system-ui-fonts-practical-guide/).`
document 2016-02-06 22:32:53 +01:00
			`{% highlight sass %}`
			`$font-family-sans-serif:`
			`// Safari for OS X and iOS (San Francisco)`
			`-apple-system,`
Add 'system-ui' to font stack. 2016-12-16 13:43:24 +01:00			`// Chrome < 56 for OS X (San Francisco)`
document 2016-02-06 22:32:53 +01:00			`BlinkMacSystemFont,`
			`// Windows`
			`"Segoe UI",`
			`// Android`
			`"Roboto",`
			`// Basic web fallback`
Update reboot.md (#23521) 2017-08-18 14:40:01 +02:00			`"Helvetica Neue", Arial, sans-serif,`
			`// Emoji fonts`
			`"Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !default;`
document 2016-02-06 22:32:53 +01:00			`{% endhighlight %}`

			This `font-family` is applied to the `<body>` and automatically inherited globally throughout Bootstrap. To switch the global `font-family`, update `$font-family-base` and recompile Bootstrap.

nav and typo 2015-04-17 08:04:42 +02:00			`## Headings and paragraphs`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
			All heading elements—e.g., `<h1>`—and `<p>` are reset to have their `margin-top` removed. Headings have `margin-bottom: .5rem` added and paragraphs `margin-bottom: 1rem` for easy spacing.

revisit how we do these heading examples because the jekyll-toc plugin renders them awkwardly 2017-05-28 07:40:00 +02:00			`<table>`
			`<thead>`
			`<tr>`
			`<th>Heading</th>`
			`<th>Example</th>`
			`</tr>`
			`</thead>`
			`<tbody>`
			`<tr>`
			`<td>`
			{% markdown %}`<h1></h1>`{% endmarkdown %}
			`</td>`
			`<td><span class="h1">h1. Bootstrap heading</span></td>`
			`</tr>`
			`<tr>`
			`<td>`
			{% markdown %}`<h2></h2>`{% endmarkdown %}
			`</td>`
			`<td><span class="h2">h2. Bootstrap heading</span></td>`
			`</tr>`
			`<tr>`
			`<td>`
			{% markdown %}`<h3></h3>`{% endmarkdown %}
			`</td>`
			`<td><span class="h3">h3. Bootstrap heading</span></td>`
			`</tr>`
			`<tr>`
			`<td>`
			{% markdown %}`<h4></h4>`{% endmarkdown %}
			`</td>`
			`<td><span class="h4">h4. Bootstrap heading</span></td>`
			`</tr>`
			`<tr>`
			`<td>`
			{% markdown %}`<h5></h5>`{% endmarkdown %}
			`</td>`
			`<td><span class="h5">h5. Bootstrap heading</span></td>`
			`</tr>`
			`<tr>`
			`<td>`
			{% markdown %}`<h6></h6>`{% endmarkdown %}
			`</td>`
			`<td><span class="h6">h6. Bootstrap heading</span></td>`
			`</tr>`
			`</tbody>`
			`</table>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
			`## Lists`

			All lists—`<ul>`, `<ol>`, and `<dl>`—have their `margin-top` removed and a `margin-bottom: 1rem`. Nested lists have no `margin-bottom`.

			`<div class="bd-example">`
			`{% markdown %}`
			`* Lorem ipsum dolor sit amet`
			`* Consectetur adipiscing elit`
			`* Integer molestie lorem at massa`
			`* Facilisis in pretium nisl aliquet`
			`* Nulla volutpat aliquam velit`
			`* Phasellus iaculis neque`
			`* Purus sodales ultricies`
			`* Vestibulum laoreet porttitor sem`
			`* Ac tristique libero volutpat at`
			`* Faucibus porta lacus fringilla vel`
			`* Aenean sit amet erat nunc`
			`* Eget porttitor lorem`

			`1. Lorem ipsum dolor sit amet`
			`2. Consectetur adipiscing elit`
			`3. Integer molestie lorem at massa`
			`4. Facilisis in pretium nisl aliquet`
			`5. Nulla volutpat aliquam velit`
			`6. Faucibus porta lacus fringilla vel`
			`7. Aenean sit amet erat nunc`
			`8. Eget porttitor lorem`
			`{% endmarkdown %}`
			`</div>`

			For simpler styling, clear hierarchy, and better spacing, description lists have updated `margin`s. `<dd>`s reset `margin-left` to `0` and add `margin-bottom: .5rem`. `<dt>`s are bolded.

			`<div class="bd-example">`
			`{% markdown %}`
			`<dl>`
			`<dt>Description lists</dt>`
			`<dd>A description list is perfect for defining terms.</dd>`
			`<dt>Euismod</dt>`
			`<dd>Vestibulum id ligula porta felis euismod semper eget lacinia odio sem.</dd>`
			`<dd>Donec id elit non mi porta gravida at eget metus.</dd>`
			`<dt>Malesuada porta</dt>`
			`<dd>Etiam porta sem malesuada magna mollis euismod.</dd>`
			`</dl>`
			`{% endmarkdown %}`
			`</div>`

More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`## Preformatted text`

			The `<pre>` element is reset to remove its `margin-top` and use `rem` units for its `margin-bottom`.

			`<div class="bd-example">`
			`{% markdown %}`
			`<pre>`
Use .example-element instead of doge :cry: 2015-08-20 01:52:24 +02:00			`.example-element {`
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`margin-bottom: 1rem;`
			`}`
			`</pre>`
			`{% endmarkdown %}`
			`</div>`

start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`## Tables`

update urls 2017-05-29 20:38:06 +02:00			Tables are slightly adjusted to style `<caption>`s, collapse borders, and ensure consistent `text-align` throughout. Additional changes for borders, padding, and more come with [the `.table` class]({{ site.baseurl }}/docs/{{ site.docs_version }}/content/tables/).
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
			`<div class="bd-example">`
			`<table>`
			`<caption>`
reboot.md: fix typo 2015-04-24 01:30:12 +02:00			`This is an example table, and this is its caption to describe the contents.`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`</caption>`
			`<thead>`
			`<tr>`
			`<th>Table heading</th>`
			`<th>Table heading</th>`
			`<th>Table heading</th>`
			`<th>Table heading</th>`
			`</tr>`
			`</thead>`
			`<tbody>`
			`<tr>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`</tr>`
			`<tr>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`</tr>`
			`<tr>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`<td>Table cell</td>`
			`</tr>`
			`</tbody>`
			`</table>`
			`</div>`

More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`## Forms`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`Various form elements have been rebooted for simpler base styles. Here are some of the most notable changes:`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			- `<fieldset>`s have no borders, padding, or margin so they can be easily used as wrappers for individual inputs or groups of inputs.
clarify some docs, improve layout 2015-04-23 08:09:05 +02:00			- `<legend>`s, like fieldsets, have also been restyled to be displayed as a heading of sorts.
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			- `<label>`s are set to `display: inline-block` to allow `margin` to be applied.
Fix typos in plural tag names 2016-02-16 20:29:59 +01:00			- `<input>`s, `<select>`s, `<textarea>`s, and `<button>`s are mostly addressed by Normalize, but Reboot removes their `margin` and sets `line-height: inherit`, too.
Fix three small typos 2015-10-19 18:37:19 +02:00			- `<textarea>`s are modified to only be resizable vertically as horizontal resizing often "breaks" page layout.
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`These changes, and more, are demonstrated below.`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`<form class="bd-example">`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`<fieldset>`
			`<legend>Example legend</legend>`

			`<p>`
			`<label for="input">Example input</label>`
			`<input type="text" id="input" placeholder="Example input">`
			`</p>`

			`<p>`
			`<label for="select">Example select</label>`
			`<select id="select">`
			`<option value="">Choose...</option>`
			`<optgroup label="Option group 1">`
			`<option value="">Option 1</option>`
			`<option value="">Option 2</option>`
			`<option value="">Option 3</option>`
			`</optgroup>`
			`<optgroup label="Option group 2">`
			`<option value="">Option 4</option>`
			`<option value="">Option 5</option>`
			`<option value="">Option 6</option>`
			`</optgroup>`
			`</select>`
			`</p>`

More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`<p>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`<label>`
			`<input type="checkbox" value="">`
			`Check this checkbox`
			`</label>`
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`</p>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`<p>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`<label>`
			`<input type="radio" name="optionsRadios" id="optionsRadios1" value="option1" checked>`
			`Option one is this and that`
			`</label>`
			`<label>`
			`<input type="radio" name="optionsRadios" id="optionsRadios2" value="option2">`
			`Option two is something else that's also super long to demonstrate the wrapping of these fancy form controls.`
			`</label>`
			`<label>`
			`<input type="radio" name="optionsRadios" id="optionsRadios3" value="option3" disabled>`
			`Option three is disabled`
			`</label>`
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`</p>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00
			`<p>`
			`<label for="textarea">Example textarea</label>`
Merge branch 'v4' of https://github.com/twbs/derpstrap into v4 Conflicts: dist/css/bootstrap.css dist/css/bootstrap.css.map docs/assets/css/docs.min.css 2015-05-28 00:49:55 +02:00			`<textarea id="textarea" rows="3"></textarea>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`</p>`

			`<p>`
Remove `datetime-local` warning from vnu ignore list, change reboot example. 2017-10-31 15:22:20 +01:00			`<label for="date">Example date</label>`
			`<input type="date" id="date">`
			`</p>`

			`<p>`
			`<label for="time">Example time</label>`
			`<input type="time" id="time">`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`</p>`

			`<p>`
Merge branch 'v4' of https://github.com/twbs/derpstrap into v4 Conflicts: dist/css/bootstrap.css dist/css/bootstrap.css.map docs/assets/css/docs.min.css 2015-05-28 00:49:55 +02:00			`<label for="output">Example output</label>`
			`<output name="result" id="output">100</output>`
start stubbing out a new reboot section and file 2015-04-17 03:39:45 +02:00			`</p>`

			`<p>`
			`<button type="submit">Button submit</button>`
			`<input type="submit" value="Input submit button">`
			`<input type="button" value="Input button">`
			`</p>`

			`<p>`
			`<button type="submit" disabled>Button submit</button>`
			`<input type="submit" value="Input submit button" disabled>`
			`<input type="button" value="Input button" disabled>`
			`</p>`
			`</fieldset>`
			`</form>`
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00
			`## Misc elements`

			`### Address`

remove some typography docs from that page because they're covered in the reboot 2015-04-18 02:18:36 +02:00			The `<address>` element is updated to reset the browser default `font-style` from `italic` to `normal`. `line-height` is also now inherited, and `margin-bottom: 1rem` has been added. `<address>`s are for presenting contact information for the nearest ancestor (or an entire body of work). Preserve formatting by ending lines with `<br>`.
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00
			`<div class="bd-example">`
			`<address>`
			`<strong>Twitter, Inc.</strong><br>`
Merge branch 'master' into v4m 2015-08-05 07:29:45 +02:00			`1355 Market St, Suite 900<br>`
			`San Francisco, CA 94103<br>`
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`<abbr title="Phone">P:</abbr> (123) 456-7890`
			`</address>`

			`<address>`
			`<strong>Full Name</strong><br>`
			`<a href="mailto:#">first.last@example.com</a>`
			`</address>`
			`</div>`

			`### Blockquote`

			The default `margin` on blockquotes is `1em 40px`, so we reset that to `0 0 1rem` for something more consistent with other elements.

			`<div class="bd-example">`
Use .blockquote class in V4 examples page Fix #17888 2015-10-12 22:56:01 +02:00			`<blockquote class="blockquote">`
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00			`<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>`
			`<footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>`
			`</blockquote>`
			`</div>`

			`### Inline elements`

Fix three small typos 2015-10-19 18:37:19 +02:00			The `<abbr>` element receives basic styling to make it stand out amongst paragraph text.
More reboot work, commenting out things that have been moved over 2015-04-17 09:22:35 +02:00
			`<div class="bd-example">`
			`Nulla <abbr title="attribute">attr</abbr> vitae elit libero, a pharetra augue.`
			`</div>`
Move `[hidden]` style from _utilities.scss to _reboot.scss; fixes #18230 [skip sauce] 2015-11-13 04:15:54 +01:00
Set `cursor:pointer` for `<summary>` 2017-12-28 03:08:10 +01:00			`### Summary`

			The default `cursor` on summary is `text`, so we reset that to `pointer` to convey that the element can be interacted with by clicking on it.

			`<div class="bd-example">`
			`<details>`
			`<summary>Some details</summary>`
			`<p>More info about the details.</p>`
			`</details>`

			`<details open>`
			`<summary>Even more details</summary>`
			`<p>Here are even more details about the details.</p>`
			`</details>`
			`</div>`

Move `[hidden]` style from _utilities.scss to _reboot.scss; fixes #18230 [skip sauce] 2015-11-13 04:15:54 +01:00			## HTML5 `[hidden]` attribute

Normalize all links. (#24109) * use a trailing slash when possible * use https when possible * remove a few redirected links * consistently use `https://popper.js.org/` * fix `iconUrl` in nuget files * change Jekyll Windows guide to the official one 2017-09-26 14:24:14 +02:00			HTML5 adds [a new global attribute named `[hidden]`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/hidden), which is styled as `display: none` by default. Borrowing an idea from [PureCSS](https://purecss.io/), we improve upon this default by making `[hidden] { display: none !important; }` to help prevent its `display` from getting accidentally overridden. While `[hidden]` isn't natively supported by IE10, the explicit declaration in our CSS gets around that problem.
Move `[hidden]` style from _utilities.scss to _reboot.scss; fixes #18230 [skip sauce] 2015-11-13 04:15:54 +01:00
			`{% highlight html %}`
			`<input type="text" hidden>`
			`{% endhighlight %}`

			`{% callout warning %}`
Move from h4s and misc to h5s so headings from example snippets don't show in our table of contents 2017-12-25 05:06:33 +01:00			`##### jQuery incompatibility`
Move `[hidden]` style from _utilities.scss to _reboot.scss; fixes #18230 [skip sauce] 2015-11-13 04:15:54 +01:00
Remove speculations about jQuery 3 2017-08-25 14:01:34 +02:00			`[hidden]` is not compatible with jQuery's `$(...).hide()` and `$(...).show()` methods. Therefore, we don't currently especially endorse `[hidden]` over other techniques for managing the `display` of elements.
Move `[hidden]` style from _utilities.scss to _reboot.scss; fixes #18230 [skip sauce] 2015-11-13 04:15:54 +01:00			`{% endcallout %}`

Remove `touch-action:manipulation` click optimization (#25250) Due to a severe performance bug in Chrome (see https://bugs.chromium.org/p/chromium/issues/detail?id=800522) and due to the fact that (with the exception of IE/Edge on Windows desktop with touchscreen) all modern browsers now optimize the click delay away anyway, this optimization is not needed. Closes https://github.com/twbs/bootstrap/issues/24670 2018-01-11 10:51:44 +01:00			To merely toggle the visibility of an element, meaning its `display` is not modified and the element can still affect the flow of the document, use [the `.invisible` class]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/visibility/) instead.