._background {
    background-image: url('../img/background/padiz.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    filter: blur(2px);
    opacity: 0.8;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}