/* A programme collection has three facets; its programme is already fixed. */
main .center-filter{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(min-width:768px) and (max-width:1100px){main .center-filter{grid-template-columns:repeat(2,minmax(0,1fr))}main .center-filter>div:nth-child(4){grid-column:1/-1}}
@media(max-width:767px){main .center-filter{grid-template-columns:minmax(0,1fr)}}