.csvtable td, .csvtable th {
    border: thin solid black;
    padding:0.25em 0.75em;
}

table.csvtable{
    border-collapse:collapse;
    margin: 1em;
}

.csvtable tr {
    background-color:#fff;
}
.csvtable tr:nth-child(even) {
    background-color:#ccc;
}
.csvtable th {
    background-color:#aaa;
}