.img-outline-primary{filter:drop-shadow(1px 0 0 #0d6efd) drop-shadow(-1px 0 0 #0d6efd) drop-shadow(0 1px 0 #0d6efd) drop-shadow(0 -1px 0 #0d6efd)}.img-outline-secondary{filter:drop-shadow(1px 0 0 #6c757d) drop-shadow(-1px 0 0 #6c757d) drop-shadow(0 1px 0 #6c757d) drop-shadow(0 -1px 0 #6c757d)}.img-outline-success{filter:drop-shadow(1px 0 0 #198754) drop-shadow(-1px 0 0 #198754) drop-shadow(0 1px 0 #198754) drop-shadow(0 -1px 0 #198754)}.img-outline-danger{filter:drop-shadow(1px 0 0 #dc3545) drop-shadow(-1px 0 0 #dc3545) drop-shadow(0 1px 0 #dc3545) drop-shadow(0 -1px 0 #dc3545)}.img-outline-warning{filter:drop-shadow(1px 0 0 #ffc107) drop-shadow(-1px 0 0 #ffc107) drop-shadow(0 1px 0 #ffc107) drop-shadow(0 -1px 0 #ffc107)}.img-outline-info{filter:drop-shadow(1px 0 0 #0dcaf0) drop-shadow(-1px 0 0 #0dcaf0) drop-shadow(0 1px 0 #0dcaf0) drop-shadow(0 -1px 0 #0dcaf0)}.img-outline-light{filter:drop-shadow(1px 0 0 #f8f9fa) drop-shadow(-1px 0 0 #f8f9fa) drop-shadow(0 1px 0 #f8f9fa) drop-shadow(0 -1px 0 #f8f9fa)}.img-outline-dark{filter:drop-shadow(1px 0 0 #212529) drop-shadow(-1px 0 0 #212529) drop-shadow(0 1px 0 #212529) drop-shadow(0 -1px 0 #212529)}