body {
  background: url('../images/bg.jpg') no-repeat center center;
   background-size: cover;
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
}

.main { position:relative; z-index:1; width:100%; }

.other { position:relative; z-index:1; }
.inner { background-color:rgba(255, 255, 255, 0.7); }

footer { z-index:1;}
footer a { color:white; text-decoration:none; }