> For the complete documentation index, see [llms.txt](https://docs.atfinity.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.atfinity.io/document-xml-adx/adx-elements/rect.md). # Rect The `` can be used to display a rectangle in a certain color. It can be used both within [``](/document-xml-adx/adx-elements/body.md) and [` ``` ## Attributes #### `width` The width of the rectangle. Can be in pt, mm, cm, or `%` (e.g. `width="100%"` when used in ``). #### `height` The height of the rectangle. Can be in pt, mm, or cm. #### `left` Only used in `