body {
    margin: 0px;
    background-color: #eee;
}

#overhiid {
    overflow: hidden;
}

.preserve3d {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 500px;
    margin-left: -300px;
    margin-top: -250px;
    perspective: 1000px;
    transform-style: preserve-3d;
}

.alfa {
    position: absolute;
    top: 0px;
    left: 0px;
    width: 600px;
    height: 500px;
    border: 2px solid #000;
    background-color: #0af;
    box-shadow: 0px 0px 30px #000;
    perspective: 1000px;
    transform: rotateY(85deg);
    animation-name: anim;
    animation-duration: 8s;
    animation-iteration-count: infinite;
}

@keyframes anim {
    0% {
        transform: rotateY(0deg)
    }
    25% {
        transform: rotateY(10deg)
    }
    75% {
        transform: rotateY(-10deg)
    }
    100% {
        transform: rotateY(0deg)
    }
}

.glass1,
.glass2,
.glass3 {
    position: absolute;
    top: 0px;
    left: 0px;
    width: 600px;
    height: 500px;
}

.glass1 {
    transform: translateZ(50px);
    animation-name: anim1;
    animation-duration: 8s;
    animation-iteration-count: infinite;
}

@keyframes anim1 {
    0% {
        transform: translateX(0px)
    }
    25% {
        transform: translateX(10px)
    }
    75% {
        transform: translateX(-10px)
    }
    100% {
        transform: translateX(0px)
    }
}

.glass2 {
    animation-name: anim2;
    animation-duration: 8s;
    animation-iteration-count: infinite;
}

@keyframes anim2 {
    0% {
        transform: translateX(0px)
    }
    25% {
        transform: translateX(-10px)
    }
    75% {
        transform: translateX(10px)
    }
    100% {
        transform: translateX(0px)
    }
}

.glass3 {
    transform: translateZ(-50px);
    animation-name: ani3;
    animation-duration: 8s;
    animation-iteration-count: infinite;
}

@keyframes anim3 {
    0% {
        transform: translateX(0px)
    }
    25% {
        transform: translateX(5px)
    }
    75% {
        transform: translateX(-5px)
    }
    100% {
        transform: translateX(0px)
    }
}

img {
    position: absolute;
}

.img1 {
    top: 115px;
    left: -25px;
    width: 650px;
    height: 400px;
}

.img2 {
    top: 110px;
    left: 25px;
    width: 500px;
    height: 400px;
}

.img3 {
    top: 0px;
    left: 0px;
    width: 600px;
    height: 350px;
}