css - styling visited links belonging to a class -

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i cannot find way style a:visited belonging .extern.

a:visited.extern doesn't work , neither a.extern:visited (i' using mozilla firefox 43.0.1 linux x86_64)

the reason have small icon i'd add .extern links, , want change url() when link visited.

<style>     a.extern {         padding-right:1.3em;         background-repeat: no-repeat;         background-attachment: scroll;         background-position: right center;         background-clip: border-box;         background-origin: padding-box;         background-size: 0.7em 0.7em;         background-image: url("img/link.png");     }      a:visited:extern {         background-image:url("img/link-visited.png");     }      a.extern:visited {         background-image:url("img/link-visited.png");     } </style>

in end visited links of type should affected

<a class="extern" href="http://etc.etc.etc">link</a>

basically want restricted browsers, particularly firefox.

per mdn - privacy , :visited selector

you still able visually style visited links, there limits on styles can use. following properties can applied visited links:

  • color
  • background-color
  • border-color (and sub-properties)
  • outline-color
  • the color parts of fill , stroke properties

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