body {
    background-color: aqua;
}

.container {
    width: 1000px;
    margin: 0 auto;
}

header {
    width: 60%;
    height: 100px;
    background-color: pink;
}

.left {
    width: 40%;
    height: 300px;
    background-color: green;
}

main {
    width: 60%;
    height: 300px;
    background-color: yellow;
}

.right {
    width: 40%;
    height: 100px;
    background-color: gray;
}

footer {
    background-color: red;
    padding: 20px;
    height: 60px;
}