add ga
fix local score
fix style
add key desc
remove appear and pop animation on mobile device
optimise
optimise
change restart key to esc and 0, fis display
fis display on mobile device
fis display on mobile device
add restart text
fix display
add f and b buttons on mobile device
fix bug, add alipay
fix text
fix text
fix line-height
optimize display in ff
optimize display in ff
add more link