.alert-error {
  position: relative;
  padding: 15px 35px 15px 15px;
  margin: 10px 0;
  border: 1px solid transparent;
  border-radius: 4px;
  color: #a94442;
  background-color: #f2dede;
  border-color: #dca7a7;
  background-image: linear-gradient(to bottom, #d40101 0, #680303 100%);
  transition: opacity 0.5s ease, background-color 0.5s ease;
}

.close-btn {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: inherit;
  padding: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  color: #000;
}