@page {
    size: 21cm 29.7cm;
    margin: 10mm 10mm 10mm 10mm;
}
#zone_impression
{
display:block;
}
.case{
background-color: white;
}
#menu_niveau,#verif,#correction,#reset,#zone_exercice,#auteur {
    display: none
}

.eximp
{
padding-top:1px;
 page-break-inside: avoid;
	break-inside: avoid;
}

#cor_imp
{
break-before: always;
}