.alert {
  padding: 15px;
  background-color: #ee1111;
  color: white;
  opacity: 1;
  transition: opacity 0.6s;
  width: 25%;
  margin: auto;
  text-align: center;
  border-radius: 0.25rem;
  position: fixed;
  left: 0;
  right: 0;
  z-index: 10;
  top: 10px;
}

.alert.success {
  background-color: #4CAF50;
}
.alert.info {
  background-color: #2196F3;
}
.alert.warning {
  background-color: #ff9800;
}

.closebtn,
.close,
.btn-close {
  color: white;
  font-weight: bold;
  float: right;
  font-size: 22px;
  line-height: 20px;
  cursor: pointer;
  transition: 0.3s;
}
.closebtn:hover,
.close:hover {
  color: black;
}

.content-center {
  width: 50%;
  margin-right: auto;
  margin-left: auto;
  position: absolute;
  left: 0;
  right: 0;
}

.fade {
  transition: opacity 0.3s linear;
}
@media (prefers-reduced-motion: reduce) {
  .fade {
    transition: none;
  }
}
.fade:not(.show) {
  opacity: 0;
}