body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    height: 100vh;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    overflow: auto;
}

.container {
    width: 100%;
    max-width: 2000px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    overflow: auto;
    box-sizing: border-box;
    padding: 20px;
}

h1 {
    text-align: center;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
}

th {
    cursor: pointer;
}

th.asc::after {
    content: " ▲";
}

th.desc::after {
    content: " ▼";
}

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