.latex sub {
    vertical-align: -0.1ex;
    margin-left: -0.1667em;
    margin-right: -0.025em;
}

.xetex sub {
    vertical-align: -0.1ex;
    margin-left: -0.1667em;
    margin-right: -0.125em;
}

.latex sub,
.latex sup,
.xetex sub {
    font-size: 0.9em;
    text-transform: uppercase;

}

.latex sup {
    font-size: 0.85em;
    vertical-align: -0.2em;
    margin-left: -0.26em;
    margin-right: -0.05em;
}