.body_header {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

.header_header {
    background-color: #333;
    color: #fff;
    padding: 15px;
    text-align: center;
}

.section_header {
    text-align: center;
    margin-top: 20px;
}

.div_header {
    display: flex;
    justify-content: center;
}

.button_header {
    background-color: #3498db;
    color: #fff;
    padding: 10px 20px;
    margin: 0 10px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: inline-block; /* Fix for the inline-link issue */
}

.button_custom{
    background: transparent;
}

.button_header a {
    color: #fff;
    text-decoration: none;
}

.button_header:hover {
    background-color: #2980b9;
}