stylesheet code for width of a TabBar of a QTabWidget

Hello,

Is it possible to change the width of specific tabs of a QTabBar of a QTabWidget?

I tried this but thats seems not to work:

m_calibrationTabWidget is the objectName of a QTabWidget

Code:

---

QTabBar::tab#m_calibrationTabWidget
{
    width: 200px;
    background-color: red;
}
 
QTabBar#m_calibrationTabWidget::tab
{
    width: 200px;
    background-color: red;
}

---

Regards,

Marcel

Could this work?
QTabBar:section
{
....