#wrap {display: flex; flex-flow: column; justify-content: center; align-items: center; background: url(../sub/background.png) no-repeat center / cover;}
#wrap .img_wrap {width: 60%; margin-bottom: 3rem;}
#wrap .img_wrap img {width: 100%;}
#wrap a {width: 70%;}
#wrap a img {width: 100%;}