* {
    margin: 0;
    padding: 0;

}

html, body {
    height: 100%;

}

.container {
    /*background: url("JPG/CX DESIGN _Página_01.jpg");*/
    /*height:100%;*/
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
}

.container span {
    color:#fff;
    font-size: 3vw;
    font-family: Arial;
    text-align: center;
    text-transform: uppercase;
    background: rgba(0,0,0,0.5);
    padding: 10px;
    position: absolute;
    top:50%;
    left: 50%;
    transform: translate(-50%, -50%);


}