CHECKED ON THESE
FOLLOWING BROWSERS
==WINDOWS==

Edge108.0
GOOGLE CHROME108.0
FIREFOX108.0.1

==MACINTOSH==

FIREFOX3.6.3,SAFARI7.0.5
JAVASCRIPT enable
RECOMENDED SCREEN RESOLUTION higher than 1280*800
PLUG-IN Require Macromedia(Adobe) flash
LAST UPDATE 2023/1/1

Valid HTML 4.01 Transitional

正当なCSSです!