**[ This description is mirrored from README.md at [github.com/Protoss78/paper-button-group](https://github.com//Protoss78/paper-button-group/blob/1.0.0/README.md) on 2019-05-22 ]** [](https://www.webcomponents.org/element/Protoss78/paper-button-group) # paper-button-group `paper-button-group` allows user to select only one button from a set. Checking one button that belongs to a group unchecks any previously checked button within the same group. Use `selected` to get or set the selected button. Example: ```html Oxygen Carbon Hydrogen Nitrogen Calcium ```