div[data-position=mobile-box]{display:block;margin:30px auto;width:calc(100vw - 40px);overflow:hidden;text-align:center}div[data-position=mobile-box] .mobile-box-ad-mock{height:250px}div[data-position=mobile-box] .bb-ads__ad:not(:empty)~.mobile-box-ad-mock{display:none}div[data-position=mobile-box] .bb-ads__empty{display:none}