body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
}

main {
    width: 1200px;
    margin: 0 auto;
}

section {
    width: 980px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 60px;
    box-sizing: border-box;
}

article h2 {
    color: blue;
    font-size: 23px;
    margin-top: 40px;
}

article p {
    font-size: 14px;
    color: #666666;
    margin-top: 30px;
}

article img {
    display: block;
    width: 100%;
    margin-top: 30px;
}

article div {
    margin-top: 30px;
}

article div h3 {
    color: #666666;
    font-size: 15px;
    font-weight: normal;
}

article div h3 span {
    color: blue;
    font-size: 22px;
    font-weight: bold;
}