Add data attributes to tables

[mjf]

Please add data attributes to all tables (everywhere where HTML tables are rendered, escpecially the <td> data attribute element (e.g., data-label="<column name>"). Responsive tables could then be fairly easy to implement using only CSS.

Simplest example

@media screen and (max-width: 800px) {
  table thead {
    visibility: hidden;
  }
  table tr,
  table td {
    display: block;
  }
  table td::before {
    content: attr(data-label)': '; /* Cool what we can do today! */
    float: left;
  }
}

I tested the above from space-style and it works, except that there is no data attribute to be used now, so the attribute hack has of course no effect. I'd really like to see this minor change implemented. It will make life on mobile easier.