.sider {
    float: right;
    max-width: 900px;
	margin: 22px auto 20px;
}
.sider_list li {
	display: inline-block;
	text-align: center;
	margin-right: 18px;
}
.sider_list li a {
	font-size: 14px;
	color: #222;
	line-height: 35px;	
	display: block;
	padding: 0 26px;
	border: 1px solid #d2d2d2;
	transition: 0.3s;
}
.sider_list li.on a, .sider_list li:hover a {
	background-color: #1e4890;
	border: 1px solid #1e4890;
	color: #fff;
}