body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-bottom: 1rem;
    color: #444;
}

p {
    margin-bottom: 1rem;
}

a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul,
ol {
    margin-bottom: 1rem;
    padding-left: 20px;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
}

button:hover {
    background-color: #2980b9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header,
.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
}

.main {
    background-color: white;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}