/* Place equation numbers on the right of the equation block (HTML),
   not above it (Sphinx default inserts <span.eqno> before the MathJax block). */
div.math {
  position: relative;
  padding-right: 4.0em; /* reserve space for (n) */
}

div.math > span.eqno {
  float: none;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
}