.liknobtn
{
	display:block;
	width:229px;
	height:25px;
	margin:0;
	padding:0;
}
.liknobtn1
{
	background: url("../buttons/student nav buttons/student nav_1.png") 0 0 no-repeat;
}
.liknobtn2
{
	background: url("../buttons/student nav buttons/student nav_2.png") 0 0 no-repeat;
}
.liknobtn3
{
	background: url("../buttons/student nav buttons/student nav_3.png") 0 0 no-repeat;
}
.liknobtn4
{
	background: url("../buttons/student nav buttons/student nav_4.png") 0 0 no-repeat;
}