.gold {
  background-color: gold;
}
.silver {
  background-color: silver;
}
.copper {
  background-color: #B87333;
}
.bronze {
  background-color: #CD7F32;
}
.circle {
  width: 25px; 
  height: 25px; 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  color: black;
  font-weight: bold;
  font-size: 10px; 
}