css-column count

column-count-one
column-count-one
column-count-one
column-count-one
column-count-one
column-count-one

column-count-two
column-count-two
column-count-two
column-count-two
column-count-two
column-count-two

column-count-three
column-count-three
column-count-three
column-count-three
column-count-three
column-count-three

https://developer.mozilla.org/ja/docs/Web/CSS/column-count