.alert {
padding: 20px;
background-color: #f44336;
color: white;
opacity: 1;
transition: opacity 0.6s;
margin-bottom: 5px;
}
.alert.success {background-color: #4CAF50;}
.alert.info {background-color: #2196F3;}
.alert.warning {background-color: #ff9800;}
.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;
}