anchor.diff:  .btn-circ-grey-lighter +
   .btn-circ-grey-lightest +
   br
  +|.btn-circ-outline-color-shade [button name]
  +br
   .btn-circ-outline-grey-darkest +
   .btn-circ-outline-grey-darker +
   .btn-circ-outline-grey-dark +
  
positive.code: .btn-circ-outline-grey-light +
  .btn-circ-outline-grey-lighter +
  .btn-circ-outline-grey-lightest +
  
negative.code: |.btn-color-shade [button name]
  br
  .btn-grey-darkest Button
  .btn-grey-darker Button
  .btn-grey-dark Button
  