table.diff {
    border: medium;
}

.diff_header {
    background-color: #e0e0e0
}

td.diff_header {
    text-align: right
}

.diff_next {
    background-color: #c0c0c0
}

.diff_add {
    background-color: #aaffaa
}

.diff_chg {
    background-color: #ffff77
}

.diff_sub {
    background-color: #ffaaaa
}