mirror of
https://github.com/twbs/bootstrap.git
synced 2024-12-10 22:24:19 +01:00
70 lines
2.2 KiB
Markdown
70 lines
2.2 KiB
Markdown
---
|
|
layout: docs
|
|
title: Spacing
|
|
group: utilities
|
|
---
|
|
|
|
Assign `margin` or `padding` to an element or a subset of its sides with shorthand classes. Includes support for individual properties, all properties, and vertical and horizontal properties. All classes are multiples on the global default value, `1rem`.
|
|
|
|
The classes are named using the format: `{property}-{sides}-{size}`
|
|
|
|
Where *property* is one of:
|
|
|
|
* `m` - for classes that set `margin`
|
|
* `p` - for classes that set `padding`
|
|
|
|
Where *sides* is one of:
|
|
|
|
* `t` - for classes that set `margin-top` or `padding-top`
|
|
* `b` - for classes that set `margin-bottom` or `padding-bottom`
|
|
* `l` - for classes that set `margin-left` or `padding-left`
|
|
* `r` - for classes that set `margin-right` or `padding-right`
|
|
* `x` - for classes that set both `*-left` and `*-right`
|
|
* `y` - for classes that set both `*-top` and `*-bottom`
|
|
* `a` - for classes that set a `margin` or `padding` on all 4 sides of the element
|
|
|
|
Where *size* is one of:
|
|
|
|
* `0` - for classes that eliminate the `margin` or `padding` by setting it to `0`
|
|
* `1` - (by default) for classes that set the `margin` or `padding` to `$spacer-x` or `$spacer-y`
|
|
* `2` - (by default) for classes that set the `margin` or `padding` to `$spacer-x * 1.5` or `$spacer-y * 1.5`
|
|
* `3` - (by default) for classes that set the `margin` or `padding` to `$spacer-x * 3` or `$spacer-y * 3`
|
|
|
|
(You can add more sizes by adding entries to the `$spacers` Sass map variable.)
|
|
|
|
Here are some representative examples of these classes:
|
|
|
|
{% highlight scss %}
|
|
.m-t-0 {
|
|
margin-top: 0 !important;
|
|
}
|
|
|
|
.m-l-1 {
|
|
margin-left: $spacer-x !important;
|
|
}
|
|
|
|
.p-x-2 {
|
|
padding-left: ($spacer-x * 1.5) !important;
|
|
padding-right: ($spacer-x * 1.5) !important;
|
|
}
|
|
|
|
.p-a-3 {
|
|
padding: ($spacer-y * 3) ($spacer-x * 3) !important;
|
|
}
|
|
{% endhighlight %}
|
|
|
|
### Horizontal centering
|
|
Additionally, Bootstrap also includes an `.m-x-auto` class for horizontally centering fixed-width block level content by setting the horizontal margins to `auto`.
|
|
|
|
<div class="bd-example">
|
|
<div class="m-x-auto" style="width: 200px; background-color: rgba(86,61,124,.15);">
|
|
Centered element
|
|
</div>
|
|
</div>
|
|
|
|
{% highlight html %}
|
|
<div class="m-x-auto" style="width: 200px;">
|
|
Centered element
|
|
</div>
|
|
{% endhighlight %}
|