%w(
html head title base link meta style
script noscript
body section nav article aside h1 h2 h3 h4 h5 h6 hgroup header footer address
p hr br pre blockquote ol ul li dl dt dd figure figcaption div
a em strong small s cite q dfn abbr time code var samp kbd sub sup i b u mark rt rp bdi bdo span
ins del
img iframe embed object param video audio source track canvas map area
table caption colgroup col tbody thead tfoot tr td th
form fieldset legend label input button select datalist optgroup option textarea keygen output progress meter
details summary command menu
)