#wrapper{
    display: grid;
    grid-auto-rows: minmax(0px,auto);
    grid-template-columns: minmax(0px, 1fr) repeat(6,minmax(0, 175px)) minmax(0px, 1fr);
    margin: 0;
    background-color: #000000;
}

a{
    text-decoration: none;
    color: #FFFFFF;
}

header{
    background-image: url('scattering.jpg');
    background-size: cover; 
    background-repeat: no-repeat;
    color: #FFFFFF;
    font-family: serif;  
    grid-column: 1/-1;   
    grid-row: 1/2;
    text-decoration: none;
}

header h1 {
    line-height: 140%;
    padding: .5rem;
  }

h1{
    text-decoration: none;

}

body{
    margin: 0;
    padding: 0;
}

nav{
    font-weight: bold;
    background-color: #424242;
    grid-column: 0.5/ span 0.5;
    grid-row: 2/ span 5;
    position: sticky;
    top: 0;
    text-decoration: none;
}


nav ul li{
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}


footer {
    font-size: 0.70rem;
    font-style: italic;
    text-align: center;
    padding-left: 1rem;
    grid-row: 6/7;
    grid-column: 2/-2;
    background-color: #000000;
    color: #FFFFFF;
  }

button{
    margin-bottom: 10px;
    margin-right: 50px;
    margin-left: 10px;
    text-decoration: none;
    text-align: left;
    color: #000000; 
    padding: 45px; 
    border: none; 
    border-radius: 5px; 
    cursor: pointer; 
    transition: background-color 0.3s ease; 
    width: 60%;
    display: flex;
    font-size: 14px;
    align-items: left;
    justify-content: center;
}

#SPACE{
    height: 497px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("SPACE.jpg");
    grid-column: 2 / 9;
    grid-row: 2 / 15;
    padding-top: 2rem;
    text-decoration: none;
    color: #FFFFFF;
}

#board{
    height: 510px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("board.png");
    grid-column: 2 / 7;
    grid-row: 2 / 15;
    text-decoration: none;
    color: #FFFFFF;
}

#foot1{
    position: absolute;
    bottom: 0;
}

#news{
    height: 450px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("spacenews.jpg");
    grid-column: 2 / 9;
    grid-row: 2 / 15;
    padding-top: 2rem;
    text-decoration: none;
    color: #FFFFFF;
}

#photos{
    grid-column: 7 / 9;
    height: 510px;
    background-size: contain;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background-color: #000000;
}

button:hover{
    background-color: #008000;

}

@media only screen and (max-width:1100px) {
    #wrapper{
      grid-template-columns: minmax(0px, 1fr) repeat(6,minmax(0, 150px)) minmax(0px, 1fr);
    }
  }

  @media only screen and (max-width:900px) {
    nav{
      grid-row: 2/3;
      grid-column: 1/5;
      position: static;
    }
  
    nav ul{
      flex-flow: column nowrap;
    }

    button{
        flex-flow: row nowrap;
        position: static;
        grid-row: 2/3;
        grid-column: 1/5;
    }
  
    #SPACE{
      grid-row: 2/3;
      grid-column: 5/8;
      height: auto;
    }

    
}

@media only screen and (max-width:600px) {
    header h1{
      background-image: none;
      text-align: center;
    }
    
    nav{
      grid-row: 2/3;
      grid-column: 1/-1;
    }
    
    #SPACE{
      display: none;
    }

    #button{
        flex-flow: row nowrap;
        position: static;
        grid-row: 2/3;
        grid-column: 1/5;
    }
}