 linear-gradient(to top right, transparent calc(00% - 0px), #DDD calc(00% - 0px), #DDD calc(00% + 0px), transparent calc(00% + 0px)), linear-gradient(to top left, transparent calc(00% - 0px), #DDD calc(00% - 0px), #DDD calc(00% + 0px), transparent calc(00% + 0px)), linear-gradient(