Found the following HTML validation problems:
comma.html:204:1 (comma.Rd:122): Warning: missing </ul> before </div>
date_breaks.html:50:1 (date_breaks.Rd:12): Warning: missing </ul> before </div>
date_format.html:67:1 (date_format.Rd:25): Warning: missing </ul> before </div>
demo_continuous.html:57:1 (demo_continuous.Rd:25): Warning: missing </ul> before </div>
dollar_format.html:130:1 (dollar_format.Rd:77): Warning: missing </ul> before </div>
expand_range.html:58:1 (expand_range.Rd:16): Warning: missing </ul> before </div>
format_format.html:49:1 (format_format.Rd:10): Warning: missing </ul> before </div>
fullseq.html:54:1 (fullseq.Rd:14): Warning: missing </ul> before </div>
number_bytes_format.html:58:1 (number_bytes_format.Rd:18): Warning: missing </ul> before </div>
ordinal_format.html:66:1 (ordinal_format.Rd:22): Warning: missing </ul> before </div>
pal_area.html:55:1 (pal_area.Rd:19): Warning: missing </ul> before </div>
pal_gradient_n.html:60:1 (pal_gradient_n.Rd:21): Warning: missing </ul> before </div>
pal_manual.html:53:1 (pal_manual.Rd:16): Warning: missing </ul> before </div>
pal_rescale.html:50:1 (pal_rescale.Rd:14): Warning: missing </ul> before </div>
pal_shape.html:48:1 (pal_shape.Rd:13): Warning: missing </ul> before </div>
parse_format.html:57:1 (parse_format.Rd:17): Warning: missing </ul> before </div>
percent_format.html:112:1 (percent_format.Rd:60): Warning: missing </ul> before </div>
pretty_breaks.html:54:1 (pretty_breaks.Rd:13): Warning: missing </ul> before </div>
pvalue_format.html:77:1 (pvalue_format.Rd:33): Warning: missing </ul> before </div>
scientific_format.html:93:1 (scientific_format.Rd:45): Warning: missing </ul> before </div>
train_continuous.html:54:1 (train_continuous.Rd:14): Warning: missing </ul> before </div>
train_discrete.html:73:1 (train_discrete.Rd:27): Warning: missing </ul> before </div>
trim_to_domain.html:53:1 (trim_to_domain.Rd:16): Warning: missing </ul> before </div>
wrap_format.html:49:1 (wrap_format.Rd:10): Warning: missing </ul> before </div>