fixes #159
fixes #159

our buttons are inline elements and as such have "vertical-align: baseline" per default. this, in combination with a fixed height, could change the relative alignment between the buttons when some of them had fewer or more lines than the others.

IPS-LMU/EMU-webApp,IPS-LMU/EMU-webApp,IPS-LMU/EMU-webApp,IPS-LMU/EMU-webApp,IPS-LMU/EMU-webApp,IPS-LMU/EMU-webApp