.block-menu {
    display: block;
    background: #333;
}

    .block-menu li {
        display: inline-block;
        float: left;
    }

        .block-menu li a {
            color: #fff;
            display: block;
            text-decoration: none;
            font-family: 'Passion One',Arial,sans-serif;
            -webkit-font-smoothing: antialiased;
            -moz-font-smoothing: antialiased;
            font-smoothing: antialiased;
            text-transform: uppercase;
            overflow: visible;
            line-height: 20px;
            font-size: 18px;
            padding: 15px 10px;
        }

/* animation domination */
.three-d {
    -webkit-perspective: 200px;
    -moz-perspective: 200px;
    perspective: 200px;
    -webkit-transition: all .07s linear;
    -moz-transition: all .07s linear;
    transition: all .07s linear;
    position: relative;
}

    .three-d:not(.active):hover {
        cursor: pointer;
    }

        .three-d:not(.active):hover .three-d-box,
        .three-d:not(.active):focus .three-d-box {
            -moz-transform: translateZ(-25px) rotateX(90deg);
            -webkit-transform: translateZ(-25px) rotateX(90deg);
            -o-transform: translateZ(-25px) rotateX(90deg);
            transform: translateZ(-25px) rotateX(90deg);
        }

.three-d-box {
    -webkit-transition: all .3s ease-out;
    -moz-transition: all .3s ease-out;
    -ms-transition: all .3s ease-out;
    -o-transition: all .3s ease-out;
    transition: all .3s ease-out;
    -webkit-transform: translatez(-25px);
    -moz-transform: translatez(-25px);
    -o-transform: translatez(-25px);
    transform: translatez(-25px);
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    -o-transform-style: preserve-3d;
    transform-style: preserve-3d;
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
}

.front {
    -webkit-transform: rotatex(0deg) translatez(25px);
    -moz-transform: rotatex(0deg) translatez(25px);
    -o-transform: rotatex(0deg) translatez(25px);
    transform: rotatex(0deg) translatez(25px);
}

.back {
    -webkit-transform: rotatex(-90deg) translatez(25px);
    -moz-transform: rotatex(-90deg) translatez(25px);
    -o-transform: rotatex(-90deg) translatez(25px);
    transform: rotatex(-90deg) translatez(25px);
    color: #FFE7C4;
}

.front, .back {
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #333;
    padding: 15px 10px;
    color: white;
    pointer-events: none;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}