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

h1 {
    color: #333;
    }

tr {
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    border-left: 1px solid #ddd;
    border-right: 1px solid #ddd;
}
tr:first-child tr {
    background-color: #D6EEEE;
}
tr:hover {background-color: #D6EEEE;}