.yb0:after{content:"";color:white;background-color:#DDDDDD;}.y1{color:#DE1E1E;}.yb1:after{content:"急行";color:white;background-color:#DE1E1E;}.y2{color:#1F6F10;}.yb2:after{content:"準急";color:white;background-color:#1F6F10;}.y3{color:#49DA2E;}.yb3:after{content:"通勤準急";color:black;background-color:#6AD056;}