Hi, The Bootstrap wrapping project for Seaside now has also support for the Jasni Bootstrap extension (see http://jasny.github.io/bootstrap). Seaside Examples can be found on the following URL's http://pharo.pharocloud.com/bootstrap/browser/Jasny%20-%20Button%20Label http://pharo.pharocloud.com/bootstrap/browser/Jasny%20-%20Input%20Mask http://pharo.pharocloud.com/bootstrap/browser/Jasny%20-%20Navmenu Hope this is useful. Thanks T.