Note: After publishing, you may have to bypass your browser's cache to see the changes.

• Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
• Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
• Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
• Opera: Press Ctrl-F5.

body {
    background-color: black;
    color: white;
    margin: 0;
}

#content {
    display: grid;
    grid-template-columns: 250px 1fr;
    grid-template-areas: 
        "sidebar main"
        "sidebar footer";
}

#top {
    grid-area: sidebar;
    background-color: #f0f0f0;
    padding: 20px;
}

#article {
    grid-area: main;
    padding: 20px;
}

#footer {
    grid-area: footer;
    background-color: #e0e0e0;
    padding: 20px;
    text-align: center;
}