.con_box {
	width:100%;
	max-width:780px;
	margin:0 auto;
}
.nav{

	margin:5% 0;
}
.nav li{
	width:33.3%;
	text-align:center;
}
.nav-tabs > li > a {
	-webkit-border-radius: 0;
	-moz-border-radius: 0;
	border-radius: 0;
	border:0.5px solid silver;
}
.nav-tabs>li.active>a, .nav-tabs>li.active>a:focus, .nav-tabs>li.active>a:hover {
	border: 0; height:41px; background:navy; color:white;
}
.tab-pane img {
	margin:0 auto;
}