TL;DR — The CSS columns refer to the creation of a flexible column layout for your web page. It is also possible to specify the number of columns and the CSS column width.
Contents
Creating column layouts
The CSS columns
shorthand property is for defining the number of columns and their width in one declaration. The column-width
and column-count
can be declared separately as well.
The example below divides the text content to four separate columns by using the column-count
longhand property:
The following example uses the CSS columns
shorthand to set both properties in one declaration. We set the CSS 3 column layout and another with four columns:
.news1 {
-webkit-columns: 100px 3; /* Chrome, Safari, Opera */
-moz-columns: 100px 3; /* Firefox */
columns: 100px 3;
}
.news2 {
-webkit-columns: 50px 4; /* Chrome, Safari, Opera */
-moz-columns: 50px 4; /* Firefox */
columns: 50px 4;
}
The following code example creates one CSS two column layout:
div {
-webkit-columns: auto 2;/* Chrome, Safari, Opera */
-moz-columns: auto 2; /* Firefox */
columns: auto 2;
}
Note:
-webkit-
is for making sure that columns in CSS are presented correctly in Opera, Chrome, and Safari.-moz-
guarantees that Firefox presents them properly.
Space between columns
The column-gap
 property creates space between columns. You can describe its value by using regular length indicators (pt, px, cm, etc.) or normal
keyword (1 em gap).
The CSS example below shows how to apply a 55 pixels distance in-between the columns:
Note: gaps in columns in CSS push the column content to make space.
Vertical lines between columns
column-rule
 is a shorthand property for adding vertical dividers between the columns. It defines column-rule-style
, column-rule-width
, and column-rule-color
 in one declaration:
column-rule-style
: sets the style of the line (solid, dotted, dashed, etc.).column-rule-width
: sets the thickness of the line (keyword such asthin
or length indicators like 9px).column-rule-color
: sets the color of the line.
In the example below, the style is set to solid:
The next example sets the width of the rule to 2px
:
The following example creates blue CSS column dividers:
Note: dividers of CSS columns do not take space. Therefore, the content won't be pushed.
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Spanning elements in columns
It is possible to make elements span across the columns. The column-span
has two values:
all
: elements expand across the columns.none
: set when it is necessary to prevent elements from spanning.
The following example sets the <h1> as the spanning element:
Setting column width
The CSS column-width
sets a unique width for all columns. Browsers then determine how many columns can fit in the specified width.
If the CSS column width is too small to fit at least two columns, the content is presented in one column.
This example determines that the suggested width of the columns is 150px
:
Setting how content fills columns
The column-fill
is for arranging and balancing the content in columns. It accepts two values:
balance
: every column has the same amount of content (cannot get taller than specified height).auto
: arranges content into the columns until it reaches height. This action is done until content ends.
Note: the column-fill has a poor browser support and currently works only in Firefox.
Full list of properties for columns
This table will quickly introduce you to styling properties for columns that CSS has to offer:
Property | Description |
---|---|
column-count | Determines the number of columns the text should be split into |
column-fill | Determines how the text should fill the columns |
column-gap | Determines spacing between columns |
column-rule | A shorthand property for all three column rule properties |
column-rule-color | Determines the horizontal divider's color |
column-rule-style | Determines the horizontal divider's style |
column-rule-width | Determines the horizontal divider's width |
column-span | Determines if the text should span between multiple columns |
column-width | Determines the width of the columns |
columns | A shorthand property for column-width and column-count |