first_name, last_name, id {
	display:inline-block;
	margin-right: -4px;
	text-align: center;
	width: 100px;
	padding: 3px;
	background-color: #efefef;
	vertical-align:top;
}

number, score {
	display:inline-block;
	width: 48px;
	margin-right: -3px;
	text-align: center;
	background-color: #cfcfcf;	
}

homework {
	display:block;
	background-color: #4d67cf;	
}

homeworks {
	display:block;
	background-color: #ccf;	
}

student {
	display:inline-block;
	margin-left: 5px;
	width: 318px;
	background-color: #00c;
}

students {
	display:block;
	width: 300px;
	background-color: #3b3c3f;
	color:#000;
}