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move spacing utils to separate file, document them a bit

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Mark Otto
2015-06-01 01:19:02 -07:00
parent c1a84e38c7
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docs/components/utilities.md
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@@ -3,13 +3,82 @@ layout: page
title: Utility classes
---
Bootstrap includes dozens of utilities—classes with a single purpose. They're designed to keep the number of declarations in your CSS down while allowing for quick and easy development.
Bootstrap includes dozens of utilities—classes with a single purpose. They're designed to reduce the frequency of highly repetitive declarations in your CSS down while allowing for quick and easy development.
## Contents
* Will be replaced with the ToC, excluding the "Contents" header
{:toc}
## Spacing
Assign `margin` or `padding` to an element or a subset of it's 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`.
### Margin
{% highlight scss %}
.m-a-0 { margin: 0; }
.m-t-0 { margin-top: 0; }
.m-r-0 { margin-right: 0; }
.m-b-0 { margin-bottom: 0; }
.m-l-0 { margin-left: 0; }
.m-a { margin: $spacer; }
.m-t { margin-top: $spacer-y; }
.m-r { margin-right: $spacer-x; }
.m-b { margin-bottom: $spacer-y; }
.m-l { margin-left: $spacer-x; }
.m-x { margin-right: $spacer-x; margin-left: $spacer-x; }
.m-y { margin-top: $spacer-y; margin-bottom: $spacer-y; }
.m-t-md { margin-top: ($spacer-y * 1.5); }
.m-r-md { margin-right: ($spacer-y * 1.5); }
.m-b-md { margin-bottom: ($spacer-y * 1.5); }
.m-l-md { margin-left: ($spacer-y * 1.5); }
.m-x-md { margin-right: ($spacer-x * 1.5); margin-left: ($spacer-x * 1.5); }
.m-y-md { margin-top: ($spacer-y * 1.5); margin-bottom: ($spacer-y * 1.5); }
.m-t-lg { margin-top: ($spacer-y * 3); }
.m-r-lg { margin-right: ($spacer-y * 3); }
.m-b-lg { margin-bottom: ($spacer-y * 3); }
.m-l-lg { margin-left: ($spacer-y * 3); }
.m-x-lg { margin-right: ($spacer-x * 3); margin-left: ($spacer-x * 3); }
.m-y-lg { margin-top: ($spacer-y * 3); margin-bottom: ($spacer-y * 3); }
{% endhighlight %}
### Padding
{% highlight scss %}
.p-a-0 { padding: 0; }
.p-t-0 { padding-top: 0; }
.p-r-0 { padding-right: 0; }
.p-b-0 { padding-bottom: 0; }
.p-l-0 { padding-left: 0; }
.p-a { padding: $spacer; }
.p-t { padding-top: $spacer-y; }
.p-r { padding-right: $spacer-x; }
.p-b { padding-bottom: $spacer-y; }
.p-l { padding-left: $spacer-x; }
.p-x { padding-right: $spacer-x; padding-left: $spacer-x; }
.p-y { padding-top: $spacer-y; padding-bottom: $spacer-y; }
.p-t-md { padding-top: ($spacer-y * 1.5); }
.p-r-md { padding-right: ($spacer-y * 1.5); }
.p-b-md { padding-bottom: ($spacer-y * 1.5); }
.p-l-md { padding-left: ($spacer-y * 1.5); }
.p-x-md { padding-right: ($spacer-x * 1.5); padding-left: ($spacer-x * 1.5); }
.p-y-md { padding-top: ($spacer-y * 1.5); padding-bottom: ($spacer-y * 1.5); }
.p-t-lg { padding-top: ($spacer-y * 3); }
.p-r-lg { padding-right: ($spacer-y * 3); }
.p-b-lg { padding-bottom: ($spacer-y * 3); }
.p-l-lg { padding-left: ($spacer-y * 3); }
.p-x-lg { padding-right: ($spacer-x * 3); padding-left: ($spacer-x * 3); }
.p-y-lg { padding-top: ($spacer-y * 3); padding-bottom: ($spacer-y * 3); }
{% endhighlight %}
## Text alignment
Easily realign text to components with text alignment classes.