div.griglia_news.views-field.views-field-title {
width: 196px;
}

.views-column {
    margin-top: 4px;
    width: 12%;
    float: left;
}
@media screen and (max-width: 1780px) {
    /* change Grid 5 to 4-column */
    .views-column {
        width: 14%;
    }
 
@media screen and (max-width: 1560px) {
    /* change Grid 5 to 4-column */
    .views-column {
        width: 16%;
    }
    
    @media screen and (max-width: 1360px) {
    /* change Grid 5 to 4-column */
    .views-column {
        width: 23%;
    }
 
@media screen and (max-width: 1160px) {
    /* change Grid 5 to 4-column */
    .views-column {
        width: 23%;
    }
 
 @media screen and (max-width: 960px) {
    /* change Grid 5 to 4-column */
    .views-column {
        width: 33%;
    }
 

@media screen and (max-width: 760px) {
    /* change Grid 4 to 2-column */
    .views-column {
        width: 48.4%;
    }

    
    @media screen and (max-width: 460px) {
    /* change Grid 5 to 4-column */
    .views-column {
        width: 100%;
    }