Стильное,полупрозрачное горизонтальное CSS3 меню с всплывающими пунктами при наведении

<nav>
    <ul>
        <li><a href="#"></a></li>
        <li><a href="#"></a></li>
        <li><a href="#"></a></li>
        <li><a href="#"></a></li>
    </ul>
</nav>

@font-face {
    font-family: 'LigatureSymbols';
    src: url('LigatureSymbols-2.05.eot');
    src: url('LigatureSymbols-2.05.eot?#iefix') format('embedded-opentype'),
        url('LigatureSymbols-2.05.woff') format('woff'),
        url('LigatureSymbols-2.05.ttf') format('truetype'),
        url('LigatureSymbols-2.05.svg#LigatureSymbols') format('svg');
    font-weight: normal;
    font-style: normal;
}
nav {
    font-family: 'LigatureSymbols';
    margin : 50px auto;
    width  : 260px;
}
ul {
    border-radius : 3px;
    margin:0;
    padding:0;
}
ul:after , ul:before {
    display : block;
    content : '';
}
ul:after {
    clear : both;
}
li {
    list-style-type : none;
    background      : linear-gradient(rgba(220,220,255,0.4) 85%, rgba(255,255,255,0.5) 100%);
    float   : left;
    cursor  : pointer;
    padding : 3px 10px;
    border-top    : 2px solid rgba(200,200,255,0.5);
    border-bottom : 2px solid rgba(50,50,50,0.4);
}
li:first-child {
    border-radius : 5px 0 0 5px;
}
li:last-child {
    border-radius : 0 5px 5px 0;
}
li a {
    display : block;
    padding : 10px 13px;
    font-size : 26px;
    text-decoration : none;
    border-radius   : 5px;
    position        : relative;
    top   : 0;
    color : #FFF;
    transition : all .4s;
}
li:hover a {
    top   : -20px;
    color : #4eacff;
    background-color: #fff;
    box-shadow : 0 0 5px 0 rgba(255, 255, 255, 0.7);
    transition : all .4s;
}
li a:after {
    display  : block;
    content  : '';
    position : absolute;
    top  : 100%;
    left : 42%;
    border-style : solid;
    border-color : transparent;
    border-width : 5px 5px 0 5px;
    transition   : all .4s;
}
li:hover a:after {
    border-color : white transparent transparent transparent;
    transition   : all .4s;
}

<nav class="menu2">
    <ul>
        <li><a href="#">Главная</a></li>
        <li><a href="#">О нас</a></li>
        <li><a class="selected" href="#">Контакты</a></li>
        <li><a href="#">Блог</a></li>
    </ul>
</nav>

.menu2 {
    width : 394px;
}
.menu2 a {
    font-family : georgia;
    font-size   : 14px;
    font-style  : italic;
    text-transform : capitalize;
}
.menu2 li {
    border-right  : 1px solid rgba(200,200,255,0.5);
    border-left   : 1px solid rgba(40,40,40,0.2);
}
.selected {
    top   : -20px;
    color : #4eacff;
    background-color: #fff;
    box-shadow : 0 0 5px 0 rgba(255, 255, 255, 0.7);
    transition : all .4s;
}
.selected:after {
    border-color : white transparent transparent transparent;
    transition   : all .4s;
}