.bnr_flex{
	display: flex;
	justify-content: space-between;
}

@media screen and (max-width: 750px) {
	
.bnr_flex{
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
}
	.bnr_flex li{
		margin-bottom: 20px;
	}
	.bnr_flex li:last-child{
		margin-bottom: 0;
	}

}