本码一二三四中文字幕

	Extra small <576px	Small ≥576px	Medium ≥768px	Large ≥992px	Extra large ≥1200px
Max container width	None (auto)	540px	720px	960px	1140px
Class prefix	.col-	.col-sm-	.col-md-	.col-lg-	.col-xl-
# of columns	12
Gutter width	30px (15px on each side of a column)
Nestable	Yes
Column ordering	Yes

1 of 2

2 of 2

1 of 3

2 of 3

3 of 3

col

col

col

col

col-8

col-4

One of two columns

One of two columns

One of two columns

One of two columns

One of two columns

One of two columns

One of two columns

One of two columns

One of two columns

One of two columns

One of three columns

One of three columns

One of three columns

One of three columns

One of three columns

One of three columns

One of three columns

One of three columns

One of three columns

First, but unordered

Second, but last

Third, but first

First, but last

Second, but unordered

Third, but first

.col-md-4

.col-md-4 .offset-md-4

.col-md-3 .offset-md-3

.col-md-3 .offset-md-3

.col-md-6 .offset-md-3

Level 1: .col-sm-9

Level 2: .col-8 .col-sm-6

Level 2: .col-4 .col-sm-6