安全区域,煤气区域作业安全知识

屏幕上安全距离: safe-area-inset-top 屏幕右安全距离: safe-area-inset-right 屏幕下安全距离: safe-area-inset-bottom 屏幕左安全距离: safe-area-inset-left iOS 11 padding-top: constant(safe-area-inset-top);padding-right: constant(safe-area-inset-right);padding-bottom: constant(safe-area-inset-bottom);padding-left: constant(safe-area-inset-left); iOS 11.2+ padding-top: env(safe-area-inset-top);padding-right: env(safe-area-inset-right);padding-bottom: env(safe-area-inset-bottom);padding-left: env(safe-area-inset-left); 兼容性写法： padding-top: constant(safe-area-inset-top);padding-top: env(safe-area-inset-top);