CSS EMPTY-CELLS

In the “separated borders” model, this property specifies whether to render borders around cells with no visible content. Content with a ‘visibility’ property value of “hidden” or certain whitespace characters (Unicode 09[tab], 0A[linefeed], 0D[Carriage Return], and 20[space]) are not considered to be “visible” content by themselves.

Example
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td {
  empty-cells: hide
}
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<td style="empty-cells: hide"></td>

Possible Values

inherit: Explicitly sets the value of this property to that of the parent.
show: Render the specified border style for cells that do not contain visible content.
hide: Do not render any specified border style for cells that do not contain visible content.