Setting slider width in QScrollBar

[burrito85]

Hello,

i am using Qt Creator 4.5.2 (Qt 5.9.5) and want to change the width of the slider in a vertical QScrollBar (QScrollArea), because of the narrow design (5 px). So, i played around with parameters verticalScrollBar()->setFixedWidth(40) / verticalScrollBar()->setMinimum(40) / verticalScrollBar()->setMaximum(40) / verticalScrollBar()->setStyleSheet("QScrollBar::vertical{width:40px;}") but nothing worked.

I can change the slider length, but not the width. What am i doing wrong?

[JoeCFD]

add margins to the handle in the stylesheet
"QScrollBar::handle:vertical{border: none; margin: *px *px *px *px; }"

[burrito85]

Thank you, that works. But is there a way without stylesheets, because it does affect other visual parameters too and i do not know how to avoid that?