.center{
    display:block;
    margin-left: auto;
    margin-right: auto;


}


 
.box {
    max-width: 1000px;
    margin: 50px auto;
    display: grid;
    grid-gap: 10px;
    grid-template-columns: 250px auto;

}

header, nav, main, footer {
    border: skyblue 5px double;
    background-image: url(https://i8.glitter-graphics.org/pub/321/321108x0j7xcm63e.gif);

}
main {
  grid-area: main;
  overflow-y: auto;
  padding: 50px;
  border: #ff3dae;
  border-radius: 50px;
  
}
  
  main {
    grid-row: 1 / 2;
    grid-column: 1 / 3;
    height: max-content;
}