.alert {
  padding: 20px;
  background-color: #f44336;
  color: white;
  opacity: 1;
  transition: opacity 0.6s;
  margin-bottom: 15px;
  border-radius: 4px;
  overflow: hidden; /* Zajišťuje správné obtékání kolem float elementů */
}

.alert.info { background-color: #2196F3; }
.alert.success { background-color: #04AA6D; }
.alert.warning { background-color: #ff9800; }
.alert.danger { background-color: #f44336; }

.closebtn {
  margin-left: 15px;
  color: white;
  font-weight: bold;
  float: right;
  font-size: 22px;
  line-height: 20px;
  cursor: pointer;
  transition: 0.3s;
}

.closebtn:hover {
  color: black;
}