body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    margin: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 12px 10px;
    text-align: left;
}

table th {
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
}

table tr:nth-child(even) {
    background-color: #f9f9f9;
}

table tr:hover {
    background-color: #f1f1f1;
}

.button {
    display: inline-block;
    padding: 6px 12px;
    background: #2196F3;
    color: white;
    text-decoration: none;
    border-radius: 4px;
}

.button:hover {
    background: #0b7dda;
}

#content-header {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
}

.table-header {
    cursor: pointer;
}