ul.optionslist {
  margin: 0;
  list-style-position: inside;
}
ul.optionslist > li {
  font-weight: bold;
}
ul.optionslist > li > ul {
  display: block;
  font-weight: normal;
  list-style: none;
  margin: 0;
  padding: 0;
}
ul.optionslist > li > ul > li {
  display: inline;
}
ul.optionslist > li > ul > li::before {
  content: ", ";
}
ul.optionslist > li > ul > li:first-child::before {
  content: none;
}