[css] fix regression introduced by 6548:fd36c1049eed: we actually need display:block on box <a> to get proper behaviour on mouse hover

#! /bin/sh -e

if [ -x "/etc/init.d/cubicweb-ctl" ]; then
    invoke-rc.d cubicweb-ctl restart || true
fi
 
 
#DEBHELPER#
 
exit 0