Hi.
Tried it with three different browsers:
- Internet Explorer 10: the white container in the middle stretches vertically to 90% height
- Firefox 37.0.1: the white container does not stretch vertically at all
- Chrome 42: the white container stretches to 90% but the message "Join us at the Lua Workshop 2015" wraps around at "Lua" and the next line (Workshop 2015) covers half the first line.