.left-nav,
.right-nav{
	position: fixed;
	top: 30%;
	z-index: 555;
}
.left-nav{
	left: 0;
}
.right-nav{
	right: 0;
}
.nav-item{
    width: 40px;
    padding: 10px;
    margin-bottom: 1px;
    box-sizing: border-box;
    background: rgba(255,213,37,1);
    border-radius: 3px;
	text-align: center;
}
.nav-item a{
	color: #fff;
}
.nav-item i{
	display: inline-block;
	width: 20px;
	height: 20px;
	background-repeat:  no-repeat;
	background-position: center center;
}
.left-nav>:nth-child(1) i{
	background-image: url(../img/nav_icon1.png);
}
.right-nav>:nth-child(1) i{
	background-image: url(../img/nav_icon1.png);
}
.right-nav>:nth-child(2) i{
	background-image: url(../img/nav_icon2.png);
}
.right-nav>:nth-child(3) i{
	background-image: url(../img/nav_icon3.png);
}
.right-nav>:nth-child(4) i{
	background-image: url(../img/nav_icon4.png);
}
.right-nav>:last-child{
	margin-top: 290px;
	padding: 10px 5px;
}
.right-nav>:last-child a{
	font-size: 12px;
}