# Columns `` can be used to display content in multiple columns on the document, e.g. line in a printed newspaper. To define columns, you need to add as many `` tags as you would like to have columns. Each column needs to have a width in % or a unit (e.g. mm or cm). It can only be used within a [``](https://docs.atfinity.io/document-xml-adx/adx-elements/body). ## Example ```xml Left Column Right Column ``` ## Attributes #### `gap` How much space should there between the columns in mm or cm e.g. `gap="8mm"`.