a.btn-delete {
  display: inline-block;
  position: relative;
  width: 30px;
  height: 30px;
  margin-right: 10px;
  background-color: #FF0000;
  border-radius: 50%;
  text-align: center;
  text-decoration: none;
  color: #FFFFFF;
  font-size: 14px;
  transition: background-color 0.3s ease;
}

a.btn-delete:before {
  content: "X";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #FFFFFF;
}

a.btn-delete:hover {
  background-color: #CC0000;
}