CSS3 навигация с переходами

<ul>
    <li class="effects"><a href="#">ГЛАВНАЯ</a></li>
    <li class="effects"><a href="#">ОБ АВТОРЕ</a></li>
    <li class="effects"><a href="#">ПОРТФОЛИО</a></li>
    <li class="effects"><a href="#">БЛОГ</a></li>
    <li class="effects"><a href="#">КОНТАКТЫ</a></li>
</ul>

ul{ 
    list-style:none;
    padding-top:50px;
}
 
li {
    position:relative;
    float: left;
    width:150px;
    text-align:center;
    padding-top:35px;
    padding-bottom:35px;
    color:#fff;
    margin-right:20px;
    border-radius:5px;
    background:#161616;
    border-bottom:1px solid #333;
    border-left:1px solid #000;
    border-right:1px solid #333;
    border-top:1px solid #000;
    cursor:pointer;
}

.effects:after, 
.effects:before {
    -moz-transition:width 0.5s ease 0s;
    height: 0px;
    width: 0px;
    position: absolute;
    content: ' ';
    display: block;
    opacity:0;
    box-shadow: 0px 0px 5px #00c6ff;
}
 
.effects:after {
    background: -moz-linear-gradient(left, #0ad, #08b);
    top: 84px;
    left: 75px;
}
 
.effects:before {
    background: -moz-linear-gradient(right, #0ad, #08b);
    top: 84px;
    right:75px;
}
 
.effects:hover:after, .effects:hover:before{
    width: 72px;
    height: 1px;
    opacity:1;
}