1. CSS outline properties

    The CSS outline properties draw a border around an element that does not affect layout, making it ideal for highlighting. This covers the `outline` shorthand, as well as `outline-width`, `outline-style`, `outline-color` and `outline-offset`.

  2. css property: -moz-outline-radius

  3. css property: -moz-outline-radius-bottomleft

  4. css property: -moz-outline-radius-bottomright

  5. css property: -moz-outline-radius-topleft

  6. css property: -moz-outline-radius-topright