PyWebIO/docs/static/pywebio.css

/* Tabs */

.ui.menu {
    font-family: Helvetica;
    min-height: 0;
}

.ui.tabular.menu .item {
    padding: 9px 1em;
}

.ui.menu .item {
    padding: 0;
}

.sphinx-tabs {
    margin-bottom: 1em;
}

/* Table cell */
td .line-block {
    margin-bottom: 0 !important;
}