.parallax {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
  
    background-color: rgba(0, 0, 0, 0.5);
    background-blend-mode: darken;
    color: #fff;

    /* background-color: rgba(255,255,255,0.6);
    background-blend-mode: lighten; */

  /* opacity: 0.18; */
  /* top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  position: absolute; */
}