rework css media-query fixes #7355 Also limit the number of query "jump", and use variables. In particular there was a container width discontinuity at 768 pixel where below 768 container width is 100% and "only" 720px on wider screen, making a jump. So now Css media query have 3 breakpoints: - <540 px with (aka -no name-) - colapsed menubar - vbox for prompt - 100% width container - 540 -> 767 (aka -xs- ) - expand menubar - hbox fro prompt - 767 -> 991 (aka -sm-) - show save widget - fix width (768px) - 991+ (aka -md-) - extra save widget info (date time) - fix with of 991 px. - 1200+ (aka -lg-) - widht of 1200px. of course we've set soem variable wrongly so this is still kinda-a-hack as we shoudl have pushed the xs-sm limit lower instead of pushing the nothing-xs limit up but I don't want to "fix it" now.