.tit-prin {
    margin: 20px;
    text-align: left;
    font-family: Arial Black;
    font-weight: bold;
    font-size: 50px;
    color: #fff;
    text-shadow: 0 1px 0 #fff, 0 2px 0 #fff, 0 3px 0 #fff, 0 4px 0 #fff, 0 5px 0 #fff, 0 6px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 5px rgba(0, 0, 0, 0.2), 0 5px 10px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.2), 0 20px 20px rgba(0, 0, 0, 0.15);
}

/* Responsive */
@media (max-width: 768px) {
    .tit-prin {
        font-size: 32px;
        margin: 15px 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .tit-prin {
        font-size: 24px;
        margin: 10px 5px;
    }
}