Hello,

Please replace the code with this one:

.elements-grid {
		display: -webkit-box;
		display: -ms-flexbox;
		display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
}

.elements-grid .product-grid-item {
	width: 50%;
	max-width: 50%;
	-webkit-box-flex: 1;
	    -ms-flex: 1 1 50%;
	        flex: 1 1 50%;
}

If there any problems with the code please provide admin access

Best Regards