.site {
    position: relative;
    transform-style: preserve-3d;
}


.site::before {
    content: '';
    background-image: url('../../dist/images/e-commerce.png');
    background-repeat: no-repeat;
    width: 100%;
    height: 100%;
    left: -15px;
    position: absolute;
    transform: translateZ(-1px);
}