.title_list {
  width: 100%;
  li {
    margin-bottom: em(10px);
    padding-left: em(260px);
    position: relative;
    b {
      position: absolute;
      top: 0;
      left: 0;
      display: inline-block;
      width: em(240px);
    }
  }
  @media screen and (max-width: $medium_breakpoint) {
    li {
      margin-bottom: em(20px);
      padding-left: 0;
      b {
        position: relative;
        display: block;
        width: 100%;
      }
    }
  }
}