html.writer-html4
  .rst-content
  dl:not(.docutils)
  dl:not(.field-list).py.xpmparam
  > dt,
html.writer-html5
  .rst-content
  dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.glossary):not(.simple)
  dl:not(.field-list).py.xpmparam
  > dt {
  border-left: 3px solid #c00;
}