body {
    font-family: 'Arial', sans-serif;
    line-height: 1.8;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header {
    text-align: center;
    margin-bottom: 20px;
    position: relative;
}

.header h1 {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    position: relative;
}

.header h1::after {
    content: "";
    display: block;
    width: 60%;
    height: 2px;
    background-color: #333;
    margin: 10px auto 0;
}

.section-title {
    font-size: 20px;
    font-weight: bold;
    margin-top: 30px;
    color: #555;
}

.content {
    margin-left: 10px;
}

.footer {
    margin-top: 30px;
    text-align: center;
    font-weight: bold;
    color: #777;
}