.flash {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    font-weight: bold;
    animation: fadeOut 1s ease-in-out 3s forwards;
}
@keyframes fadeOut{
    to{
        opacity: 0;
        display: none;
    }
}

.flash.success {
    background-color: #d4edda;
    color: #155724;
}

.flash.error {
    background-color: #f8d7da;
    color: #721c24;
}