BODY{
  
  font-size : 15px;
  

  color : black;
  

  background-image : url(http://www.shin-ai.or.jp/image/back.gif);
}
A{
  color : black;
  text-decoration : underline;
}
A:HOVER{
  background-color : #ddfafb;
  text-decoration : underline;
}