nav {
        display: block;
        text-align: center;
}
nav ul {
        margin: 0;
        padding:0;
        list-style: none;
}
.nav a {
        display:block;
        background: #111;
        color:#fff;
        text-decoration: none;
        padding: .8em 1.8em;
        text-transform: uppercase;
        font-size: 80%;letter-spacing: 2px;
        text-shadow: 0 -1px 0 #000;
        position: relative;
}
.nav{
        vertical-align: top;
        display: inline-block;
        box-shadow: 1px -1px -1px 1px #000, -1px 1px -1px 1px #fff, 0 0 6px 3px #fff;
        border-radius:6px;
}
.nav li{position: relative;}
.nav > li {
        float:left;
        border-bottom: 4px #aaa solid;
        margin-right: 1px;
}
.nav > li > a {
        margin-bottom:1px;
        box-shadow:inset 0 2em .33em -.5em #555;
}
.nav > li:hover , .nav > li:hover >a{  border-bottom-color:orange;}
.nav li:hover > a { color:orange; }
.nav > li:first-child  { border-radius: 4px 0 0 4px;}
.nav > li:first-child>a{border-radius: 4px 0 0 0;}
.nav > li:last-child  {
        border-radius: 0 0 4px 0;
        margin-right: 0;
}
.nav > li:last-child >a{border-radius: 0 4px 0 0; }
.nav li li a { margin-top:1px}

.nav li a:first-child:nth-last-child(2):before {
        content:"";
        position: absolute;
        height:0;
        width: 0;
        border: 5px solid transparent;
        top: 50% ;
        right:5px;
}

/* submenu positioning */
.nav ul {
        position: absolute;
        white-space: nowrap;
        border-bottom: 5px solid  orange;
        z-index: 1;
        left: -99999em;
}
.nav > li:hover > ul {
        left: auto;
        padding-top: 5px;
        min-width: 100%;
}
.nav > li li ul {  border-left:1px solid #fff;}

.nav > li li:hover > ul {
 /* margin-left: 1px */
        left: 100%;
        top: -1px;
}
/* arrow hover styling */
.nav > li > a:first-child:nth-last-child(2):before {
        border-top-color: #aaa;
}
.nav > li:hover > a:first-child:nth-last-child(2):before {
        border: 5px solid transparent;
        border-bottom-color: orange;
        margin-top:-5px
}
.nav li li > a:first-child:nth-last-child(2):before {
        border-left-color: #aaa;
        margin-top: -5px
}
.nav li li:hover > a:first-child:nth-last-child(2):before {
        border: 5px solid transparent;
        border-right-color: orange;
        right: 10px;
}