.big{
	position: relative;
	width: 100%;
	margin-top: 50px;
    margin-bottom: 100px;
}

.content{
	position: absolute;
	top: 100%;
	left: 55%;
	background-color:rgba(255,255,255,0.8);
	padding: 5px;
	border-radius: 6px;
	display: none;
	width: 60px;
	
}
.biaoji1{
	background-image: url(../img/biaoji.png);
	width: 40px;
	height: 40px;
	position: absolute;
	top: 15%;
	left: 10%;
}
.biaoji2{
	width: 40px;
	height: 40px;
	position: absolute;
	top: 41%;
	left: 76%;
}
@media (max-width:768px){
	.biaoji1{
	background-image: url(../img/xiao.png);
	width:10px;
	height:10px;
	
}
}