@charset "utf-8";
ul.b-gallery_list{
display: flex;
flex-wrap: wrap;
margin-bottom: 3em;
}
ul.b-gallery_list li{
width: 110px;
margin: 0 9px 20px;
}

@media screen and (max-width: 768px) {
ul.b-gallery_list{margin-bottom: 2em;}
ul.b-gallery_list li{
margin: 0 5px 10px;
width: calc(100% / 4 - 10px);
}
}