.image-container{
    width: 30%;
    margin-bottom: 20px;
}
.cont-flex{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
@media(max-width: 991px){
	.image-container {
		width: calc(50% - 15px);
	}
}
@media(max-width: 575px){
	.image-container {
		width: 100%;
	}
}