th { border: 1px solid black; }
td { border: 1px solid silver; }
th {
	text-align: left;
}
.main {
	background: #e0e0ff;
}
.writing1 {
	background: #e0ffe5;
}
.fun1 {
	background: #ffe0e5;
}
.writing2 {
	background: #e5f0ef;
}
.fun2 {
	background: #f0e5ef;
}