@keyframes flash{0%{background-color:#0002;box-shadow:32px 0 #0002,-32px 0 #000}50%{background-color:#000;box-shadow:32px 0 #0002,-32px 0 #0002}to{background-color:#0002;box-shadow:32px 0 #000,-32px 0 #0002}}@keyframes flash-black{0%{background-color:#fff2;box-shadow:32px 0 #fff2,-32px 0 #fff}50%{background-color:#fff;box-shadow:32px 0 #fff2,-32px 0 #fff2}to{background-color:#fff2;box-shadow:32px 0 #fff,-32px 0 #fff2}}