anchor.diff:      input
         border: none
         background-color: inherit
  -      color: $link-color
  +      color: var(--link-color)
         font-style: normal
         font-weight: normal
         text-decoration: underline
  
positive.code:   margin-top: 50px
    margin-left: 15px
    margin-right: 15px
    color: #999
    text-align: center
    font-size: 80%
    border-top: 1px solid #ccc
  
  .droppable
    position: fixed
  
negative.code: 
  // link
  a
    color: var(--link-color)
    font-style: normal
    text-decoration: underline
  
  a:link
    color: var(--link-color)
    font-style: normal
    text-decoration: underline
  
  a:visited
    color: var(--link-visited-color)
    text-decoration: underline
  
  a:hover
    color: var(--link-color)
    font-style: normal
    text-decoration: underline
  
  