This is my first blog about css tricks - how to create a good simple css layout. CSS .wrapper { display: -webkit-box; display: -moz-box; display: -ms-flexbox; display: -webkit-flex; display: flex; -webkit-flex-flow: row wrap; flex-flow: row wrap; font-weight: bold; text-align: center; } .wrapper > * { padding: 10px; flex: 1 100%; } .header { background: tomato; } .footer { background: lightgreen; } .main { text-align: left; background: deepskyblue; } .aside-1 { background: gold; } .aside-2 { background: hotpink; } @media all and (min-width: 600px) { .aside { flex: 1 auto; } } @media all and (min-width: 800px) { .main { flex: 3 0px; } .aside-1 { order: 1; } .main { order: 2; } .aside-2 { order: 3; } .footer { order: 4; } } body { padding: 2em; }