.notas {
    margin-bottom: 15px;
    padding: 4px 12px;
}

.nota01 {
    background-color: #ffdddd;
    border-left: 6px solid #f44336;
}

.nota02 {
    background-color: #ddffdd;
    border-left: 6px solid #4CAF50;
}

.nota03 {
    background-color: #e7f3fe;
    border-left: 6px solid #2196F3;
}

.nota04 {
    background-color: #ffffcc;
    border-left: 6px solid #ffeb3b;
}