.blocGrisVertical{
    flex-wrap: wrap !important;
    justify-content: flex-start;
}

.blocGrisVertical div {
    width: 30%;
    height: auto !important;
    min-height: 100px !important;
}

@media screen and (max-width: 650px) {
    .blocGrisVertical div {
        width: 45% !important;        
    }
}