TOP

<p><a href="index.php">TOP</a></p>

p         {width:1em; overflow:hidden; font:15px/1.2 Consolas,monospace;}
a:link    {background:transparent;color:#00f;}
a:visited {background:transparent;color:#f0f;}
a:hover   {background:#000;       color:#fff;}
a:active  {background:#000;       color:#fbb;}
a:before  {content:'\3e\3e';}

/*
  unclickable: (omit,) inherit, transparent
  clickable: others
*/