#places-nearby-settings-block {
        width: 100%;
    }

    #places-nearby-map-block {
        width: 100%;
    }

    @media (min-width: 992px) {
        /* SM */
        #places-nearby-settings-block {
            width: 300px;
        }

        #places-nearby-map-block {
            width: calc(100% - 300px);
        }
    }