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#column-width
Defines the number of columns of the element.
default
column-width: auto;
The element will not distribute its child elements into columns, unlesse a column-count value is defined. In that case, the column width will be infered from the column count.
column-width: 10px;
You can use pixel values for the column width.
The number of columns will be the minimum needed to distribute all the content across the element.