body{
	background-color: #d1fffb;
    text-align: center;
    font-family: Comic Sans MS;
}
.heading_terza{
	background-color: #00ff00;
}
h1{
	color: green;
}
h3{color:#00ff00;}
.terza{
	color: #00ff00;
}
.quarta{
	color:blue;
}
.heading_quarta{
	background-color:blue;
}
.compiti_vacanze{
	background-color:yellow;
}
a:visited{
	text-decoration: none;
    color: blue;
}
a{
	text-decoration: none;
}
a:hover{
	text-decoration: underline;
}