.sciences-image {
	background-size: cover;
	background-position: left top;
	background-repeat: no-repeat;
	width: 300px;
	max-width: 50vw !important;
	height: 150px;
	max-height: 25vw;
}
.sciences-image-left {
	float: left;
	margin-right: 2vmax;
}
.sciences-image-right {
	float: right;
	margin-left: 2vmax;
}
.sciences-image-1 {
	background-image: url('/img/sciences/fermat.jpg');
	background-position: center 70%;
}
.sciences-image-2 {
	background-image: url('/img/sciences/physics-books.jpg');
	background-position: center 30%;
}