.container {
  display: grid;
  grid-template-columns: 0.25fr 15px 0.75fr;
  grid-template-rows: auto 25px auto 25px auto 25px auto;
 
}
.grid {
  background-color: #444;
  color: #fff;
  padding: 25px;
  font-size:1.2rem;
  
}

.header {
  background-image: url(assets/Main_JAT_Logo_1.png);
  background-size:80%;
  background-position:center;
  background-repeat: no-repeat;
  grid-column-start: 1;
  grid-column-end: 2;
  grid-row-start: 1;
  grid-row-end: 2;
  background-color: white;
}
.nav {
    grid-column-start:2;
    grid-column-end:4;
    grid-row-start:1;
    grid-row-end:2;
    background-color:white;
    padding-top: 37px;
}
.nav a {
    text-decoration: none;
    color:black;
    font-family: sans-serif;
    margin-right: 155px;
}
.content {
  background-image: url(assets/beneye.png);
  background-size:100%;
  background-position:center;    
  grid-column-start: 1;
  grid-column-end: 4;
  grid-row-start: 3;
  grid-row-end: 4;
  /*background: #f5c531;*/
  height: 400px;
  color: white;
}

.extra {
  grid-column-start: 1;
  grid-column-end: 4;
  grid-row-start: 5;
  grid-row-end: 6;
  background: #898989;
}
 
.footer {
  grid-column-start: 1;
  grid-column-end: 4;
  grid-row-start: 7;
  grid-row-end: 8;
  background-color: black;
  height: 100px;
}
@media (max-width:600px) {
    .container{
        display:grid;
        grid-template-columns:auto; /* auto or 100; */
        grid-template-rows: repeat(5, auto);
        /*this says 5 rows all of them will be auto*/
        grid-row-gap: 10px;
        grid-template-areas: "logo" "nav" "image" "box" "box2";
    }
    .logo {
        grid-area:logo;
        /* define heights if you want to: height:80px; */
    }
    .nav {
        grid-area:nav;
    }
    .image {
        grid-area:image;
    }
    .box {
        grid-area: box;
    }
    .box2 {
        grid-area:box2;
    }
}