.gallerys {
    width: 50%;
    max-width: 55%;
    margin-inline: auto;
    display: grid;
    gap: 10px;
    grid-auto-flow: dense;
    grid-template-columns: repeat(7, 1fr);
}
@media screen and (max-width: 768px) {
.gallerys {
	width: 77%;
    max-width: 77%;
}}

.imgs:first-child {
	grid-column: 1/4;
	grid-row: 1/3;
}
.imgs:nth-child(2) {
	grid-column: 4/8;
	grid-row: 1/2;
}
.imgs:nth-child(3) {
	grid-column: 4/8;
	grid-row: 2/3;
}
.imgs:nth-child(4) {
	grid-column: 1/5;
	grid-row: 3/5;
}
.imgs:nth-child(5) {
	grid-column: 1/5;
	grid-row: 5/7;
}
.imgs:nth-child(6) {
	grid-column: 5/8;
	grid-row: 3/4;
}
.imgs:nth-child(7) {
	grid-column: 5/8;
	grid-row: 4/7;
}


/* アスペクト比 */
.imgs {
    display: block;
    aspect-ratio: 300/200;
    width: 100%;
    height: 100%;
    object-fit: cover;	
}
.imgs:first-child {
  aspect-ratio: 200/400;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.imgs:nth-child(7) {
  aspect-ratio: 200/300;
  width: 100%;
  height: 100%;
  object-fit: cover;
}