body { 
    background-image: url(project_wide.jpg);
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: fixed;
    background-size: cover;
}
    .wrapper{
        position:relative;
      }
      .all{
        position:absolute;
        z-index:1;
        bottom:0;
      }
      .image1{
        width:100vw;
        top:-500vh;
        left:38vw;
        height:100%;
      }
      .image2{
        width:100vw;
        right:38vw;
        height:90%;
      }
      .image3{
        z-index:2;
        width:20vw;
        left:22vw;
        height:70%;
      }
      .image4{
        z-index:2;
        width:20vw;
        right:22vw;
        height:70%;
      }
      .image5{
        width:8vw;
        left:10vw;
        height:80%;
      }
      .image6{
        width:8vw;
        right:10vw;
        height:80%;
    }