Components

Heading

Would be nice to have a system description that is max 2 lines. Maybe the biggest benefit?
Title

Heading

Heading
Paragraph
Tag

Heading

Paragraph

Utilities

Top

u-mt-0
margin-top: 0;
u-mt-1
margin-top: 1em;
u-mt-2
margin-top: 2em;
u-mt-3
margin-top: 3em;
u-mt-auto
margin-top: auto;

Bottom

u-mb-0
margin-bottom: 0;
u-mb-1
margin-bottom: 1em;
u-mb-2
margin-bottom: 2em;
u-mb-3
margin-bottom: 3em;

Other

u-m-0
margin: 0;
u-mlr-auto
margin: 0 auto; (centers element))
u-mr-1
margin-right: 1em;
u-ml-1
margin-left: 1em;

Top

u-pt-0
padding-top: 0;
u-pt-1
padding-top: 1em;
u-pt-2
padding-top: 2em;
u-pt-3
padding-top: 3em;

Bottom

u-pb-0
padding-bottom: 0;
u-pb-1
padding-bottom: 1em;
u-pb-2
padding-bottom: 2em;
u-pb-3
padding-bottom: 3em;

Other

u-p-0
padding: 0;
u-p-1
padding: 1em;
u-text-center
text-align: center;
u-text-right
text-align: right;
u-overflow-hidden
overflow: hidden;
u-overflow-visible
overflow: visible;
u-d-none
display: none;
u-d-block
display: block;
u-d-flex
display: flex;
u-d-inline-flex
display: inline-flex;
u-position-relative;
position: relative;
u-position-sticky;
position: sticky;
u-w-100
width: 100%;
u-h-100
height: 100%;
u-minh-100vh
min-height: 100vh;
u-img-cover
Multiple properties
u-link-cover
Multiple properties
Open link
u-aspect-1x1
Multiple properties
u-z-index-1
Multiple properties
u-sr-only
Multiple properties
Screen Reader Only
u-border
Multiple properties

Layout

section
container
col
col
col
col
col
col
col
col
col
col
col
col-lg-1
col
col-lg-11
col
col-lg-2
col
col-lg-10
col
col-lg-3
col
col-lg-9
col
col-lg-4
col
col-lg-8
col
col-lg-5
col
col-lg-7
col
col-lg-6
col
col-lg-6
col
col-lg-12
col
col-md-1
col
col-md-11
col
col-md-2
col
col-md-10
col
col-md-3
col
col-md-9
col
col-md-4
col
col-md-8
col
col-md-5
col
col-md-7
col
col-md-6
col
col-md-6
col
col-md-12
col
col-sm-1
col
col-sm-11
col
col-sm-2
col
col-sm-10
col
col-sm-3
col
col-sm-9
col
col-sm-4
col
col-sm-8
col
col-sm-5
col
col-sm-7
col
col-sm-6
col
col-sm-6
col
col-sm-12
col
col-xs-1
col
col-xs-11
col
col-xs-2
col
col-xs-10
col
col-xs-3
col
col-xs-9
col
col-xs-4
col
col-xs-8
col
col-xs-5
col
col-xs-7
col
col-xs-6
col
col-xs-6
col
col-xs-12
row
row-align-center
col
col
col
row
row-align-end
col
col
col
row
row-justify-end
col
col
row
row-justify-center
col
col
row
row-justify-around
col
col
row
row-justify-between
col
col
col
col-lg-first
col
col-md-first
col
col-sm-first
col
col-xs-first
col
col-lg-last
col
col-md-last
col
col-sm-last
col
col-xs-last

Shrink Column

col
col-shrink
col

Gutterless Column

row
row-no-gutters
col
col-no-gutters
col
col-no-gutters
col
col-no-gutters
col
col-no-gutters