.zk_mv{text-align:center;}
.zk_mv p{margin:6rem auto -1rem;padding-top:0;width:100%;text-align: center;line-height: 1.2;}

.movie01{padding:0 0 8rem;}
.youtube-ratio iframe { width: 900px; height: auto; aspect-ratio: 16 / 9; display: block; margin: auto; }

@media only screen and (max-width: 980px) {
.zk_mv p.movie img{width:95%;margin:0 auto;}
}
@media only screen and (max-width: 850px) {

}

@media only screen and (max-width: 760px) {
    .zk_mv p{margin:0 auto -1rem ;}
       .youtube-ratio iframe { width: 100%;}
}