.WhiteBoard_white-board__JRsAf{display:flex;justify-content:start;width:100%;height:1920px;padding-left:4rem}.WhiteBoard_color-pen-btn__IDEPv{width:6rem;height:4rem}.WhiteBoard_black__XIYae{background:#0d0015}.WhiteBoard_blue__Q3RN7{background:blue}.WhiteBoard_red__zgGsF{background:red}.WhiteBoard_green__JieC_{background:green}.WhiteBoard_rainbow__y9PlZ{background:linear-gradient(90deg,#e60000,#f39800 #fff100,#094,#0068b7,#1d2088,#920783)}