CourtBouillon

article {
  columns: 2;
}

That’s enough to create two columns, with automatic gutter width, columns widths and balancing. Not bad for one single line of CSS!

Of course, CSS gives you the possibility to configure a lot of things, not only the number of columns. You want to add a small line between your columns, increase or decrease the empty width between them, or avoid automatic balancing? You can! Just play with column-fill, column-rule and column-gap to get what you want.

Another main feature of CSS columns is spanning elements. If you want to add a title that’s displayed across the whole block of columns, just use the column-span property!

article {
  columns: 3;
  column-gap: 3em;
}

h2 {
  column-span: all;
}

Columns are easy to use but can be hard to master. Finely controlling hyphenation, line height, orphans and widows can be useful to reach a rendering that’s both solid and beautiful.

Learn more about columns:

• W3C CSS specification
• Documentation on MDN