#include <QtWidgets>

int main(int argc, char** argv)
{
  QApplication app(argc, argv);

  const char *txt = R"(
<style>
  .superTable {
    border-width: 1px;
    border-style: dot-dash;
    border-collapse: collapse;
  }
  .cellA {
    border-width: 1px;
    border-style: dotted;
    border-collapse: collapse;
  }
  .cellB {
    border-width: 1px;
    border-top-style: dot-dot-dash;
    border-collapse: collapse;
  }
</style>
<table class="superTable">
    <tr><td>
        <td class="cellA">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAa</td>
        <td class="cellB">BBBBBBBBBBBBBBBBBBBBB</td>
    </td></tr>
</table>
                    )";
  QTextEdit te;
  te.setHtml(txt);
  te.show();
  return app.exec();
}