nly if characters inside the words explicitly define hyphenation opportunities. In this test, the characters inside the word 'Deoxyribonucleic' do not explicitly define hyphenation opportunities, so it must not be hyphenated." name="assert">

  <style>
  div
    {
      border: black solid 2px;
      font-family: monospace;
      font-size: 32px;
      margin-bottom: 0.25em;
      width: 10ch;
    }

  span#test
    {
      hyphens: manual;
    }

  div#reference
    {
      hyphens: none;
    }
  </style>
