CSS, Web, Web Development, Layout.
aside" "footer footer footer"; grid-template-columns: 220px 1fr 220px; grid-template-rows: auto 1fr auto; } header { grid-area: header; } main { grid-area: main; } nav { grid-area: nav; } aside { grid-area: aside; } footer { grid-area: footer; } @media screen and (max-width: 800px) { body {