Phoenix Reisen Styleguide
Example
Markup
<label class="switch">
  <span class="switch__input">
    <input
      name=""
      value=""
      checked=""
      onclick=""
      type="checkbox"
    />
    <span class="switch__slider"></span>
  </span>
  <span class="switch__label">
    Licht an oder aus, das ist hier die Frage. Lorem ipsum dolor sit amet, consetetur
    sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam
  </span>
</label>
Source: src/components/_forms.scss, line 321