ul {
  width: 400px;
  margin: 0 auto; }

li {
  display: flex;
  justify-content: flex-start;
  line-height: 1.5em;
  margin-bottom: 20px;
  font-family: source-han-sans-japanese, sans-serif;
  font-weight: 200;
  font-style: normal; }
  li span {
    text-align: left; }
    li span:nth-child(1) {
      width: 120px; }
    li span:nth-child(2) {
      width: 280px;
      padding-left: 1em; }