container {
        max-width: 1000px;
        margin: 100px auto;
        display: grid;
        
}

header {
  border:white 2px solid;
}

Nav {
   border:white 2px solid;
}

Logo {
  border:white 2px solid;
}

main {
  border:white 2px solid;
}
advert {
  border:white 2px solid;
}
footer {
  border:white 2px solid;
}