#body_container{
    width: 100%;
    height: 1000px;

    background: url(img/1.2.jpg) fixed  top;
    background-size: cover;
    position: relative;
}

#containercalc{
    content: "";
    background: rgba(0,0,0,0.4);
    position: absolute;
    bottom: 0;
    top: 67px;
    right: 0;
    left: 0;
}
body {
    color: white;
  }
#HH{
    padding-top: 20px;
}