| xs (optional) | size | The grid ratio to use for the smallest break point |
| sm (optional) | size | The grid ratio to use for the small break point |
| md (optional) | size | The grid ratio to use for the medium break point |
| lg (optional) | size | The grid ratio to use for the large break point |
| xl (optional) | size | The grid ratio to use for above the large break point |
| xs-offset (optional) | size | The offset ratio to use for the smallest break point |
| sm-offset (optional) | size | The offset ratio to use for the small break point |
| md-offset (optional) | size | The offset ratio to use for the medium break point |
| lg-offset (optional) | size | The offset ratio to use for the large break point |
| xl-offset (optional) | size | The offset ratio to use for above the large break point |
| dynamic (optional) | string | Watch for updates to the attributes |