/* 공통(모바일 위주) */
/* 1. 회사소개 */
.sub1_img img {width: 100%;}


/* 모바일까지 ~767px */
@media screen and (max-width: 767px) {
    .sub1_img img {max-width: 530px;}
}

/* 태블릿 부터 768px~ */
@media screen and (min-width: 768px) {}

/* 태블릿만 768px ~ 1279px */
@media screen and (min-width: 768px) and (max-width: 1279px) {
    .sub1_img img {max-width: 720px;}
}

/* pc 1280px~ */
@media screen and (min-width: 1280px) {
    .sub1_img {width: 90%;}
}