Defines the number of columns of the element.

默认属性 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.