#main-menu {
    width: 100%;
    margin: 0px auto;
    position: relative;
    left: 0px;
    z-index: 100;
    font-size: 12px;
    -webkit-perspective: 500px;
    -moz-perspective: 500px;
    -o-perspective: 500px;
    perspective: 500px;
}


#main-menu ul {
    display: table;
    width: 100%;
    margin: 0px;
    padding: 0px;
}


#main-menu ul li {
    list-style-type: none;
    display: table-cell;
}


#main-menu ul li a strong {
    font-weight: bold !important;
}
#main-menu ul li a {
    white-space:nowrap;
    font-family: arial,helvetica,verdana,sans;
    background-color: #fff;
    background-image: none;
    box-shadow: inset 0 0 .25em hsla(0,0%,0%,.1),
                inset 0 0 1.5em hsla(0,0%,0%,.25);
    color: #333;
    display: block;
    font: bold 1em/3 'Exo 2', sans-serif !important;
    padding: 0 1.5em;
    position: relative;
    text-align: center;
    text-decoration: none;
    text-shadow: 0 1px 1px hsla(0,0%,100%,.25);
    transition: .5s;
    -webkit-transform-origin: 0 0;
    transform-origin: 0 0;
    -moz-transform-origin: 0 0;
    -o-transform-origin: 0 0;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    -o-transform-style: preserve-3d;
    text-transform:uppercase;
    position: relative;
}

#main-menu ul li a:after
{
    background-color: inherit;
    color: #fff;
    background-image: linear-gradient(#77c6f3, #6184ad),
                      linear-gradient(-72deg, #77c6f3 50%, transparent 50%);
    box-shadow: inset 0 0 .25em hsla(0,0%,0%,.2),
                inset 0 0 1.5em hsla(0,0%,0%,.3);
    bottom: 0;
    content: attr(data-title);
    left: 0px;
    line-height: 3;
    position: absolute;
    top: 0;
    font-weight: bold !important;
    -webkit-transform: rotateX(-90deg) translateZ(3em);
    transform: rotateX(-90deg) translateZ(3em);
    -moz-transform: rotateX(-90deg) translateZ(3em);
    -o-transform: rotateX(-90deg) translateZ(3em);
    -webkit-transform-origin: 0 0;
    transform-origin: 0 0;
    -moz-transform-origin: 0 0;
    -o-transform-origin: 0 0;
    width: 100%;
}
#main-menu ul li a:before {
    background-color: inherit;
    background-image: linear-gradient(hsla(0,0%,100%,.07), hsla(0,0%,0%,.07)),
                      linear-gradient(hsla(0,0%,0%,.5), hsla(0,0%,0%,.5));
    bottom: 0;
    content: '';
    height: 3em;
    left: 100%;
    position: absolute;
    top: 0;
    -webkit-transform-origin: 0 0;
    transform-origin: 0 0;
    -moz-transform-origin: 0 0;
    -o-transform-origin: 0 0;
    width: 3em;
    z-index: -1;
}

#main-menu ul li:nth-child(-n+3) a:before {
    -webkit-transform: rotateY(90deg);
    transform: rotateY(90deg);
    -moz-transform: rotateY(90deg);
    -o-transform: rotateY(90deg);
}
#main-menu ul li:nth-child(n+4) a:before {
    -webkit-transform: rotateY(90deg);
    transform: rotateY(90deg);
    -moz-transform: rotateY(90deg);
    -o-transform: rotateY(90deg);
    left:0px;
    position: absolute;
}
#main-menu ul li:hover a, #main-menu ul li a.active {
    -webkit-transform: rotateX(90deg) translateY(-3.0em);
    transform: rotateX(90deg) translateY(-3.0em);
    -moz-transform: rotateX(90deg) translateY(-3.0em);
    -o-transform: rotateX(90deg) translateY(-3.0em);
    text-shadow: 0px 0px 10px #fff;
}








/* Extra small devices (phones, less than 768px) */
@media(max-width:767px) {
    #main-menu {
        width: 94% !important;
    }
    #main-menu ul {
        width: 100%;
        display: block;
        height: auto;
    }
    #main-menu ul li:nth-child(even) {
        left: 4%;
    }
    #main-menu ul li {
        width: 48%;
        float: left;
        position: relative;
    }
    #main-menu ul li a {
        text-align: center;
        width: 100%;
    }
    #main-menu ul li a:before {
        display: none;
    }
}



.mobile #main-menu ul li a:after, .mobile #main-menu ul li a:before,
.ie #main-menu ul li a:after, .ie #main-menu ul li a:before {
    display: none;
}
.mobile #main-menu ul li a,
.ie #main-menu ul li a {
    background-color: #fff;
    color: #333;
}
.mobile #main-menu ul li:hover a, .mobile #main-menu ul li a.active,
.ie #main-menu ul li:hover a, .ie #main-menu ul li a.active {
    -webkit-transform: rotateY(0deg);
    transform: rotateY(0deg);
    -moz-transform: rotateY(0deg);
    -o-transform: rotateY(0deg);

    background-image: linear-gradient(#77c6f3, #6184ad), linear-gradient(-72deg, #77c6f3 50%, transparent 50%);
    background-color: #6fb3de;
    color: #fff;
}