.alert {
  padding: 20px;
  color: white;
  opacity: 1;
  transition: opacity 0.6s;
  margin-bottom: 15px;
}

.alert.success {background-color: #4CAF50;}
.alert.info {background-color: #2196F3;}
.alert.warning {background-color: #ff9800;}
.alert.error {background-color: #f44336;}

.popup { 
  border: 4px outset #393D42;
  border-radius: 15px;
  box-shadow:inset 3px 3px 3px rgba(255,255,255,.7), inset -2px -2px 3px rgba(0,0,0,.1), 2px 2px 10px rgba(0,0,0,.1);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 20px;
  color: white;
  opacity: 1;
  transition: opacity 0.6s;
  margin-bottom: 15px;
}

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

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

.closebtnsuc:hover {
  color: black;
}

.today {
  background: orange;
}