What causes a problem in QSS (Qt, C++)?

Question

css

There is a Qt::FramelessWindowHint window with setAttribute(Qt::WA_TranslucentBackground) applied. When applying these styles:

setStyleSheet("QTabWidget::pane{background-color: white; border-top:2px solid gray;} ");

This is what happens:

What makes tabs that are not selected so strange? Tried changing the border property of QTabWidgeta, QTabBara and QtabBar::tab, doesn't help.

Answer 1

QSS are broken in many places and no one from Digia will fix them anymore. You can dance with a tambourine and hope to find a hack to get around the bugs, or just switch to QML.