vertically center JSmol viewer
increase font size of molecule combo box, decrease vertical space between items so that popup fits on screen
reduce height of plates from 450 to 430
reduce surface size from 2.5 to 2.25 times the atom diameter
adjust layout of 'Real Molecules' screen
increase font size of 'Atom Electronegativities' title
increase width of surface color keys
increase width of 'Bond Character' display
adjust layouts
transparent border on JSmol viewer, will ultimately have no border