One of the most vocal critics of abstract expressionism at the time was New York Times art critic John Canaday. Meyer Schapiro and Leo Steinberg along with Clement Greenberg and Harold Rosenberg were important art historians of the post-war era who voiced support for abstract expressionism.
Keyboards should be of appropriate size and key-spacing to accommodate most users. Generally, the horizontal spacing between the centers of two keys should be 0.71-0.75 inches (18-19 mm) and the vertical spacing should be between 0.71-0.82 inches (18-21 mm) (Figure 9).
Sorry to mislead you. I just meant for the ios devices you can do a bit of research and learn the keyboard height for each device. Your program would have to detect which device they are running then set the variable appropriately. I wish there was some system call to get the keyboard height no matter which device.