.gallery{
	height: 100%;
	width: 80%;
	display: flex;
	margin: 5% auto 0;
	box-sizing: border-box;
}
.image_box{
	margin: 0 1%;
	flex-grow: 2;
	flex-basis: 0;
	transition: 0.5s;
}
.image_box img{
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: 0.5s;
}
.image_box:hover{
	flex-basis: 50%;
}
.active{
	flex-basis: 50%;
}
.gallery:hover .active{
	flex-basis: 0;

}
.image_box:nth-child(1):hover{
	flex-basis: 70%;
}