*{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}
body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f1f1f1;
    margin: auto;
}

section{
    padding: 10px;
    max-width: 1140px;
    margin: auto;
}

.footer{
    padding: 20px;
    text-align: center;
    background: #ddd;
    margin-top: 20px;
    width: 100%;
    height: 50px;
}