Correct media width selectors
Correct media width selectors

'max-width' media selectors should use width-max variables and 'min-width' media selectors should be using width-min variables. Changed width variables to to correct width value. (Only 1 pixel difference, but this is better for reading comprehension/consistency.)

gios-asu/ASU-Web-Standards-Bootstrap,gios-asu/ASU-Web-Standards-Bootstrap