#a2PastPerfectFrame{position:fixed;inset:0;z-index:10000;background:#102c4d}
#a2PastPerfectFrame[hidden]{display:none!important}
#a2PastPerfectFrame iframe{display:block;width:100%;height:100%;border:0}
#a1PerfectTensesReviewFrame{position:fixed;inset:0;z-index:10000;background:#f3f7fa}
#a1PerfectTensesReviewFrame[hidden]{display:none!important}
#a1PerfectTensesReviewFrame iframe{display:block;width:100%;height:100%;border:0}