*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
    padding: 20px;
    margin: 0;
    line-height: 1.6;
    color: #333;
    background-color: #f8f8f8;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-top: 0;
    padding-top: 20px;
}

p {
    margin-bottom: 1em;
}