---
title: "block · RUAL Documentation"
description: "give your button the button block style"
canonical: https://docs.rual.nl/block-types/ui class/uiclass_button_block
language: en
---

# block

This block is part of the [`ui class`](https://docs.rual.nl/block-types/ui%20class) group and was last modified in core [`v10.4.28`](https://docs.rual.nl/core-versions/100428).

### Parent Requirements

This block requires specific parent elements: `state_button`. Ensure this block is placed within the appropriate parent context.

give your button the button block style

- uiclass `uiclass`

A typical wiring for [block](https://docs.rual.nl/block-types/ui%20class/uiclass_button_block): the `uiclass` out pin feeds [regular card](https://docs.rual.nl/block-types/state%20ui/state_card).

![Studio canvas example for the block block: typical wiring for block.](https://docs.rual.nl/canvas-examples/uiclass_button_block.png)

### Version history

Introduced in [`v10.4.28`](https://docs.rual.nl/core-versions/100428).