0
0
mirror of https://github.com/twbs/bootstrap.git synced 2025-01-09 02:46:15 +01:00
Bootstrap/site/content/docs/5.2/layout/gutters.md
Mark Otto fc3f4b67d6
Add dark mode support (#35857)
* Add dark mode to docs

* Minor fix: missing space indentation

* Minor fix: revert utilities/z-index added-in modification

* Remove prev: and next: from doc because extracted to another PR

* Use .bg-body-tertiary in all Utilities > Overflow examples

* fix example

* Fix up spacing examples

* Update box-shadow Sass variables and utilities to auto-adjust to color modes

* Remove unused docs class

* Refactor form styles to use CSS variable for background images on .form-check and .form-switch

* Fix docs selector

* Rename shortcut for clarity

* Heading consistency

* Reintroduce missing 4th grid item in Utilities > Spacing example

* Fix bundlewatch

* .bd-callout* rendering is OK so removing comments in the code

* Update scss/_utilities.scss

Co-authored-by: Julien Déramond <julien.deramond@orange.com>

* Fix gutters example styling

* Fix text colors on background utils docs

* redesign and fix up position marker example, which doesn't show nicely in darkmode but at least isn't broken

* fix some color utils examples

* Deprecate mixin notice

* Deprecate notice for list-group-item-variant() mixin

* Revamp new link CSS vars

* Use map-keys in some each Sass files

* Remove list-group-item-variant mixin ref in sass loop desc

* Display CSS vars scoped to our built-in dark mode

* Revert previous commit

* Fix list group variant link

* Fix typo

* Remove imports of alert/list-group mixins in scss/_mixins.scss

* Small formatting + comments removal in scss/_content.scss

* Fix alert links colors

* fix dropdown border-radius mixin

* fix link color and underline again, this time using CSS var override for color var and fallback value for the underline

* fix colors on docs navbar for dark mode

* remove two changes

* missing ref

* another link underline fix, just use sass vars for link decoration for now

* missing color bg docs, plus move dropdown override to scss

* more changes from review

* fix some examples, drop unused docs navbar styles, update docs navbar color mode to use mixin

* Few fixes around type

- Restored CSS variable for color on headings, this time with a fallback value
- In conjunction, restored and wrapped the default CSS var with a null value check
- Split headings and paragraphs docs in Reboot, elaborated on them

* Restyle custom details > summary element in docs

* Rewrite some migration docs

* fix form checks

* Fix up some navbar styling, tweak docs callout

* Fix select images, mostly for validation styling

* Clean up some migration notes, document some new form control CSS vars, mention new variables-dark in sass docs

* Update site/content/docs/5.2/components/scrollspy.md

Co-authored-by: Julien Déramond <julien.deramond@orange.com>

* Apply suggestions from code review

Co-authored-by: Julien Déramond <julien.deramond@orange.com>

* mention form control css vars in migration guide

* Tweak grid and flex docs background examples

* clarify some docs

* fix some more things

Co-authored-by: Julien Déramond <juderamond@gmail.com>
Co-authored-by: Julien Déramond <julien.deramond@orange.com>
2022-11-28 22:30:26 -08:00

166 lines
5.3 KiB
Markdown

---
layout: docs
title: Gutters
description: Gutters are the padding between your columns, used to responsively space and align content in the Bootstrap grid system.
group: layout
toc: true
---
## How they work
- **Gutters are the gaps between column content, created by horizontal `padding`.** We set `padding-right` and `padding-left` on each column, and use negative `margin` to offset that at the start and end of each row to align content.
- **Gutters start at `1.5rem` (`24px`) wide.** This allows us to match our grid to the [padding and margin spacers]({{< docsref "/utilities/spacing" >}}) scale.
- **Gutters can be responsively adjusted.** Use breakpoint-specific gutter classes to modify horizontal gutters, vertical gutters, and all gutters.
## Horizontal gutters
`.gx-*` classes can be used to control the horizontal gutter widths. The `.container` or `.container-fluid` parent may need to be adjusted if larger gutters are used too to avoid unwanted overflow, using a matching padding utility. For example, in the following example we've increased the padding with `.px-4`:
{{< example class="bd-example-cols" >}}
<div class="container px-4 text-center">
<div class="row gx-5">
<div class="col">
<div class="p-3">Custom column padding</div>
</div>
<div class="col">
<div class="p-3">Custom column padding</div>
</div>
</div>
</div>
{{< /example >}}
An alternative solution is to add a wrapper around the `.row` with the `.overflow-hidden` class:
{{< example class="bd-example-cols" >}}
<div class="container overflow-hidden text-center">
<div class="row gx-5">
<div class="col">
<div class="p-3">Custom column padding</div>
</div>
<div class="col">
<div class="p-3">Custom column padding</div>
</div>
</div>
</div>
{{< /example >}}
## Vertical gutters
`.gy-*` classes can be used to control the vertical gutter widths within a row when columns wrap to new lines. Like the horizontal gutters, the vertical gutters can cause some overflow below the `.row` at the end of a page. If this occurs, you add a wrapper around `.row` with the `.overflow-hidden` class:
{{< example class="bd-example-cols" >}}
<div class="container overflow-hidden text-center">
<div class="row gy-5">
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
</div>
</div>
{{< /example >}}
## Horizontal & vertical gutters
`.g-*` classes can be used to control the horizontal gutter widths, for the following example we use a smaller gutter width, so there won't be a need to add the `.overflow-hidden` wrapper class.
{{< example class="bd-example-cols" >}}
<div class="container text-center">
<div class="row g-2">
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
<div class="col-6">
<div class="p-3">Custom column padding</div>
</div>
</div>
</div>
{{< /example >}}
## Row columns gutters
Gutter classes can also be added to [row columns]({{< docsref "/layout/grid#row-columns" >}}). In the following example, we use responsive row columns and responsive gutter classes.
{{< example class="bd-example-cols" >}}
<div class="container text-center">
<div class="row row-cols-2 row-cols-lg-5 g-2 g-lg-3">
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
<div class="col">
<div class="p-3">Row column</div>
</div>
</div>
</div>
{{< /example >}}
## No gutters
The gutters between columns in our predefined grid classes can be removed with `.g-0`. This removes the negative `margin`s from `.row` and the horizontal `padding` from all immediate children columns.
**Need an edge-to-edge design?** Drop the parent `.container` or `.container-fluid` and add `.mx-0` to the `.row` to prevent overflow.
In practice, here's how it looks. Note you can continue to use this with all other predefined grid classes (including column widths, responsive tiers, reorders, and more).
{{< example class="bd-example-row" >}}
<div class="row g-0 text-center">
<div class="col-sm-6 col-md-8">.col-sm-6 .col-md-8</div>
<div class="col-6 col-md-4">.col-6 .col-md-4</div>
</div>
{{< /example >}}
## Change the gutters
Classes are built from the `$gutters` Sass map which is inherited from the `$spacers` Sass map.
```scss
$grid-gutter-width: 1.5rem;
$gutters: (
0: 0,
1: $spacer * .25,
2: $spacer * .5,
3: $spacer,
4: $spacer * 1.5,
5: $spacer * 3,
);
```