.histogram {
    border-spacing: 0;
}

.histogram th {
    font-weight: normal;
}

tr {
    font-size: small;
    line-height: 1em;
}

caption {
    margin-top: 1em;
    font-size: large;
    text-align: left;
}

.histogram th {
    text-align: right;
}

.histogram .bar {
    background-color: red;
    display: -moz-inline-block;
    display: inline-block;
    height: 1em;
}

.histogram .label {
    position: absolute;
    margin-left: 0.5em;
    white-space: nowrap;
}

[irrelevant] {
    display: none;
}