body {
    font-family: sans-serif;
    margin: 0;
    display: grid; 
    grid-template-rows: auto 1fr auto;
    grid-template-columns: 200px 1fr;
    grid-template-areas: 
        "header header"  
        "nav    main"    
        "footer footer"; 
    min-height: 100vh;
}

header {
    grid-area: header;
    background-color: #333;
    color: white;
    padding: 20px;
    text-align: center;
}

nav {
    grid-area: nav;
    background-color: #f4f4f4;
    padding: 20px;
    border-right: 1px solid #000;
}

main {
    grid-area: main;
    padding: 300px;
    background-color: white;
}

footer {
    grid-area: footer;
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}

nav a {
    display: block;
    margin-bottom: 10px;
    color: blue;
    text-decoration: none;
}

table { width: 100%; border-collapse: collapse; margin: 20px 0; }
th, td { border: 1px solid #000; padding: 10px; }
img { max-width: 100%; height: auto; border: 1px solid #000; }