.bt{
	height: 1.1rem;
	margin-top: 0.2rem;
	background: #FFF;
	position: fixed;
	bottom: 0;
	width: 100%;
	z-index: 1000;
	box-shadow: -1px -1px 7px #DDD;
}
.fl {
	float: left;
}
.fr {
	float: right;
}
.bt ul{
	display: flex;
	justify-content: space-around;
	padding-top: 0.15rem;
}
.bt ul li a{
	display: inline-block;
	font-size: 0.28rem;
	padding-top: 0.55rem;
	color: #999;
}
.bt ul li.active a{
	color:#8ec555;
}
.bt ul li{
	background-image:url(../img/first-page/icon.png);
	background-repeat: no-repeat;
	background-size: 5.36rem;
}
.bt ul li:nth-child(1).active{
	background-position: 0.04rem 0;
}
.bt ul li:nth-child(2).active{
	background-position: -0.76rem 0;
}
.bt ul li:nth-child(3).active{
	background-position: -1.56rem 0;
}
.bt ul li:nth-child(4).active{
	background-position: -2.17rem 0;
}
.bt ul li:nth-child(5).active{
	background-position: -3.3rem 0;
}
.bt ul li:nth-child(1){
	background-position: 0.05rem -0.9rem;
}
.bt ul li:nth-child(2){
	background-position: -0.76rem -0.9rem;
}
.bt ul li:nth-child(3){
	background-position: -1.56rem -0.9rem;
}
.bt ul li:nth-child(4){
	background-position: -2.2rem -0.85rem;
}
.bt ul li:nth-child(5){
	background-position: -3.3rem -0.84rem;
}