section#a1,
section#a2,
section#a3,
section#a4
{
	display:none;
}



nav div span#a1 i.fa.fa-folder-open-o,
nav div span#a2 i.fa.fa-folder-open-o,
nav div span#a3 i.fa.fa-folder-open-o,
nav div span#a4 i.fa.fa-folder-open-o
{
	display:none;
}