.content {
	margin:auto;
	width:750px;
	text-align:center;
	font-size:20px;
}

.level {
	margin-top:15px;
	margin-bottom:15px;
	font-size:20px;
}

.ad {
	padding-top:25px;
    margin-top: 15px;
    margin-bottom: 15px;
}

.timer {
	margin-top:15px;
	margin-bottom:15px;
	font-size:20px;
}

.header {
	color:blue;
    font-size:25px;
	margin-top:15px;
	margin-bottom:15px;
}

.isn {
	border: 0;
	text-align: center;
	margin: 0pt;
	width: 30px;
	font-family: trebuchet ms, maximo, times;
	font-size: 18pt;
	color: #ff0000;
}
.sn {
	color: #0000ff;
	font-family: trebuchet ms, maximo, times;
	font-size: 18pt;
	width: 35px;
	height : 35px;
}

.table {
	padding-top: 15px;
	padding-bottom:15px;
}