[role=radio] {
   margin: 0;
   padding: 0;    
   border: 2px transparent solid;
   margin-bottom: .5em;
   margin-top: .5em;
}
[role=radio] {
   display: block;
   border: thin transparent solid;
   margin-left: 18px;
}  
[role=radio]:hover {
   border-color: #777;
}

[role=radio].focus {
   border-color: black;
}
#codeex{
   background-color: #F1F1F1 ;
   padding:10px;
}