QMainWindow {
    background-color: rgb(246, 246, 246);  
}

QComboBox, QPushButton, QLineEdit, QTextEdit, QListWidget, QTableWidget, QGroupBox, QStackedWidget {
    border: 1px solid black;
    border-radius: 2px;
}

QGroupBox#groupBoxFilters, QStackedWidget#stackedWidget {
    background-color: white;
}

QLineEdit {
    border-radius: 5px;
}

QComboBox {
    background-color: white;
}

QComboBox::drop-down {
    border: 0px;
}

QComboBox::down-arrow {
    width: 10px;
    height: 10px;
    image: url(:/images/down-arrow.png);
}

QPushButton {
    background-color: white;
    padding: 5px;
}

QPushButton:hover {
    background-color: green;
    color: white;
}

QPushButton:pressed {
    background-color: green;
    border-radius: 4px;
    border-width: 2px;
    color: white;
}