er-production {
  text-transform: none;
  letter-spacing: 1.5px;
  padding-left: 0.5em;
}

#menu-toc {
  display: flex;
  flex-direction: column;
  width: 100%;
  overflow: hidden;
  flex-grow: 1;
}

#menu-toc ol.toc {
  overflow-x: hidden;
  overflow-y: auto;
}

#menu-search {
  position: relative;
  flex-grow: 0;
  flex-shrink: 0;
  width: 100%;

  display: flex;
  flex-direction: column;

  max-height: 300px;
}

#menu-trace-list {
  display: none;
}

#menu-search-box {
  box-sizing: border-box;
  display