@redmunds As I mentioned in the other issue, `~"calc(100vh - 34px)"` doesn't work because there is a bug in Blink, where calc doesn't work with viewport units. But according to this issue it is fixed in Chrome 34: https://code.google.com/p/chromium/issues/detail?id=168840. I would test it again when we merge the next CEF, but it might be fixed until the next update.