[dimension-attributes.html]
  [<col width="0"> mapping to <col> width property]
    bug: https://github.com/whatwg/html/issues/4717

  [<col width="0%"> mapping to <col> width property]
    bug: https://github.com/whatwg/html/issues/4717

  [<col width="0px"> mapping to <col> width property]
    bug: https://github.com/whatwg/html/issues/4717

  [<table height="0"> mapping to <table> height property]
    bug: https://github.com/whatwg/html/issues/4715

  [<table height="0%"> mapping to <table> height property]
    bug: https://github.com/whatwg/html/issues/4715

  [<table height="0px"> mapping to <table> height property]
    bug: https://github.com/whatwg/html/issues/4715

  [<tr height="0"> mapping to <tr> height property]
    bug: https://github.com/whatwg/html/issues/4716

  [<tr height="0%"> mapping to <tr> height property]
    bug: https://github.com/whatwg/html/issues/4716

  [<tr height="0px"> mapping to <tr> height property]
    bug: https://github.com/whatwg/html/issues/4716