.class-1st .alarmGrad {
	background: red;
}
.class-2nd .alarmGrad {
	background: orange;
}
.class-3rd .alarmGrad {
	background: yellow;
}
.class-4th .alarmGrad {
	background: #FFEFDB;
}
.class-5th .alarmGrad {
	background: #FFF8DC;
}