.wide-container_wave-butu .image {text-align: center;} @media (min-width: 576px){ .wide-container_wave-butu .butu-main_img { width: 70%; margin: auto; } /*.wide-container_wave-butu .col-sm-6 {このclassは不要 flex: none; width: 50%; }*/} .wide-container_wave-butu .syukaku-area {/*新規追加*/ /* text-align: center; */ margin: auto; /* margin-left: 25%; */ /* margin-right: 25%; */ width: 50%; /* margin-bottom: