.symbol {
  display: inline-block;
  border-radius: 50%;
  border: 5px double white;
  width: 30px;
  height: 30px;
}

.symbol-empty {
    content: url(/Assets/images/hear.png);
    margin-left: 4px;
    width: 20px;
    display: unset;
}

.symbol-filled {
    content: url(/Assets/images/heart_filled.png);
    width: 20px;
    margin-left: 4px;
}