<identifier>

示例代码：

li{counter-increment:testname;}
li{counter-reset:testname2;}
@keyframes testanimations{
	from{opacity:1;}
	to{opacity:0;}
}

示例代码：

li{counter-increment:border;}
li{counter-reset:background;}
@keyframes auto{
	from{opacity:1;}
	to{opacity:0;}
}