body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #333;
    color: white;
    background-image: url('pageback.png');
}


#header {
    width: 1100px;
    margin: 20px auto;
    text-align: center;
    color: yellowgreen;
    font-size: 45pt;
}

#welcome {
    width: 1000px;
    margin: 20px auto;
    font-size: 24pt;
}

#datatable {
    display: flex;
    width: 1200px;
    margin: 20px auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    font-size: 18pt;
}

.clickme {
    text-decoration: underline;
    cursor: pointer;
}

td {
    color: black;
}

th {
    background-color: steelblue;
    color: white;
    text-align: left;
}

.lightrow {
    background-color: #DDD;
}

.darkrow {
    background-color: #BBB;
}