A [capybara](https://github.com/jnicklas/capybara) driver that uses [WebKit](http://webkit.org) via [QtWebKit](http://doc.qt.nokia.com/4.7/qtwebkit.html).
capybara-webkit depends on a WebKit implementation from Qt, a cross-platform development toolkit. You'll need to download Qt to build and install the gem.
If you're on Ubuntu, you can install the libqt4-dev package. On Linux platforms, capybara-webkit requires an X server to run, although it doesn't create any visible windows.