a {
color: black ;
 font-size: 120% ; 
 background:  silver ;
 border-style: solid;
 border-width: 2px 1px 1px 3px  ;
 border-color: black  gray  gray  black ;
 padding: 1px;
 margin: 4px;
 }
 
a.m0 {
 border-style: solid;
border-width: 2px 1px 1px 3px  ;
border-color: black  gray  gray  black ;
}

a.m1 {
 font-size: 0% ;  
  background:  white ; 
 border-style: solid;
border: 0px ;
border-color: gray ;
padding: 0px;
 margin: 0px;

}
 
a:hover 
{
color: white ;
 font-size: 120% ; 
 background: gray ;
  border-style: solid;
 border-width: 1px 3px 2px 1px ;
 border-color: gray black black gray ;
 
 } 
 a.m0:hover   {
color: black ;
 background:  white ; 
  border-style: solid;
 border-width: 1px 3px 2px 1px ;
 border-color: gray black black gray ;
  } 

  
 a.m1:hover   {
color: white ;
 background:  white ; 
  border-style: solid;
 border: 1px  ;
 border-color: gray ;
 

 }