.container {   display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 0.9fr 1.1fr;
  grid-template-rows: 1fr 1.6fr 0.4fr 1fr 1fr;
  gap: 7px 7px;
  grid-auto-flow: row;
  grid-template-areas:
    "header header header header header header"
    "content content content content content nav"
    "content content content content content ad"
    "content content content content content ad"
    "content content content content content ad";
}

.header { grid-area: header; }

.ad { grid-area: ad; }

.content { grid-area: content; }

.nav { grid-area: nav; }


html, body , .container {
  
    background-image: url("https://files.catbox.moe/zweejb.jpg");
    width: 950px; 
  height: 99%;
  margin: 0 auto;
}



.container * {
  box-shadow: 0 0 0 3.5px white;
  background-image: url("https://files.catbox.moe/vnzqhv.png");
  position: relative;
}

.container *:after {
  content:attr(class);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: grid;
  align-items: center;
  justify-content: center;
  
}