body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    max-width: 900px;
    margin: 50px auto;
    padding: 20px;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    font-size: 24px;
    color: #333;
    text-align: center;
}

.authors {
    text-align: center;
    font-size: 14px;
    color: #777;
}

.buttons {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.button {
    display: inline-block;
    margin: 0 10px;
    padding: 10px 20px;
    font-size: 14px;
    color: white;
    background-color: #007bff;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #0056b3;
}

.abstract {
    padding: 20px;
    background-color: #f9f9f9;
    border-left: 5px solid #007bff;
    margin-bottom: 20px;
}

.abstract h2 {
    margin-top: 0;
}

.image {
    text-align: center;
}

.image img {
    max-width: 100%;
    height: auto;
}