body {
    background-color: black;
    color: white;
    display: flex;
    align-items: center;
}

box {
    min-width: 600px;
    margin: 15px auto;
    padding: 10px;
    display: grid;
    grid-template-rows: 75px 30px auto 30px;
    gap: 5px;
}

nav, main, footer {
    border: 2px solid white;
    padding: 2px;
}

header {
    border-left: 2px solid white;
    border-right: 2px solid white;
    border-top: 2px solid white;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    text-align: center;
    margin: 0 auto;
    grid-row: 1;
    max-width: fit-content;
    padding-left: 35px;
    padding-right: 35px;
}

nav {
    border-left: 0;
    border-right: 0;
    max-width: max-content;
    grid-column: 1 / 2;
    grid-row: 2;
    display: flex;
    justify-content: center;
    gap: 5px;
    margin: 0 auto;
    padding-left: 10px;
    padding-right: 10px;
    padding-top: 4px;
}

main {
    grid-row: 3;
    margin: 0 auto;
    max-width: auto;
    padding: 5px;
    border-radius: 8px;
}

footer {
    padding: 0 15px;
    text-align: center;
    color: gray;
    border-color: gray;
    max-width: fit-content;
    margin: 0 auto;
    max-height: 20px;
}

button {
    background-color: black;
    color: white;
    border: 2px solid white;
}

#frame { 
    width: 300px; 
    height: 200px; 
    resize: both; 
}