docs/source/_static/css/line_space.css

.rst-content .section ol li>*, .rst-content .section ul li>* {
  margin-top: 0px;
  margin-bottom: 0px;
}

.rst-content .section ol li>*, .rst-content .section li ul>* {
  margin-top: 0px;
  margin-bottom: 0px;
}

.rst-content .section ol li>*, .rst-content .section ul li ul {
  margin-top: 0px;
  margin-bottom: 0px;
}