body {
    font-size: 24px;
}

div.main-body {
    display: grid;
    grid-template-columns: minmax(300px , auto)1fr;   
    grid-template-areas: "navbar mainContent";
    grid-gap: 20px;
}
   
nav#navbar {
    grid-area: navbar;
    position: fixed;   
}
   
nav#navbar a {
    display: block;
    border: 1px solid black;
    padding: 5px;
    margin: 10px 0;
    text-decoration: none;
    color: black;
}
   
main#main-doc {
    grid-area: mainContent;
}
   
header {
    font-size: 36px;
    font-weight: bold;
	color: darkblue;
}
