.free {
   border: 4px solid whitesmoke;
   box-shadow: 0 0 20px gray;
}

.gold {
   border: 4px solid gold;
   box-shadow: 0 0 20px gold;
}

.platinum {
   border: 4px solid lightblue;
   box-shadow: 0 0 20px lightblue;
}

.diamond {
   border: 4px solid rgb(147, 221, 255);
   box-shadow: 0 0 20px rgb(147, 221, 255);
}