This is a bunch of text split into three columns using the CSS columns property. This includes a column-count value of 3, a column-width value of auto, and a column-height value of 5em. The column-wrap value is set to its initial value, auto; when a column-height value is included, column-wrap: auto resolves to wrap, which allows the columns to wrap onto multiple rows. The text is equally distributed over the columns, and placed into multiple rows.