QStyleSheet not effecting some objects correctly

[Niagarer]

Hi! I am surely missing something regular, anyway I can't find the mistake.
I am doing this in my mainWindow class:

    qDebug().noquote()  << global << endl;
    qDebug().noquote()  << sheet << endl;

    centralWidget()->setStyleSheet( sheet );
    this->setStyleSheet( global );

I load the stylesheets from text files.
This is what the debugs print:

background: #252525;
color: #b1b1b1;  
border-color: #2d8bed; 

background: #252525;
color: #b1b1b1;  
border-color: #2d8bed;QGroupBox {                                                          
	background-color: #303030;                                       
	border: 0px solid #2d8bed;                                          
	border-radius: 0px;                                              
}QLineEdit, QPlainTextEdit{                                                           
	background-color: #3f3f46;                                       
	border: 1px solid rgba( 255, 255, 255, .3);                      
	border-radius: 5px;                                              
}QPushButton {
	border: 2px solid #333333;
	border-radius: 6px;
	background-color: #161616;
	min-width: 0px;
	min-height: 20px;
}

QPushButton:pressed {
	background-color: #404040;
}
QPushButton:checked {
	color: #ffffff;
	border: none;
}QScrollArea{
	border: 0px solid transparent;
}QSplitter::handle {
	background: qlineargradient(x1:0, y1:0, x2:1, y2:1,
		stop:0 #3f3f46, stop:1 #3f3f46);
	border: 1px solid #2d8bed;
	width: 5px;
	height: 5px;
	margin-top: 2px;
	margin-bottom: 2px;
	border-radius: 4px;
}QTabWidget::pane {
	border: 0px solid black;
} 

But it doesn't work correctly. My ScrollAreas have a 1px solid gray border. My Groupboxes have a solid 1px white border. My tab widget has on the bottom side and on the right side a (round about) 4px solid white color and so on. My splitter handles are not even visible !?
What's wrong? Didn't I set all that correctly in the stylesheet?
Thanks for help!

[JonB]

@Niagarer
I don't know: would what you see be explained if neither stylesheet is being included/works? Or only if the sheet one is being included/works?

It's not something I'm familiar with: are your 3 initial lines allows to be outside any rule, not enclosed in any {}s?

[Niagarer]

@JonB
Uhm, those are just some mistakes, but (almost) everything else works and I get no errors, so the stylesheet is valid and being parsed correctly.
Only these borders and stuff don't want to. Only using the sheet also doesn't solve the problem unfortunately...
And from my experience: yes, writing stylesheet outside of {}s is legitim, then it just applies to everything lower in the hirarchy except it is set differently for specific widgets (with {}s)

[JonB]

@Niagarer
Sorry, don't know then, but thanks for letting me know:

And from my experience: yes, writing stylesheet outside of {}s is legitim, then it just applies to everything lower in the hirarchy except it is set differently for specific widgets (with {}s)

[Niagarer]

@JonB
Oh wait, I just figured out, you were actually right!!
I took a look into the docs http://doc.qt.io/qt-5/stylesheet-syntax.html
Universal Selector * Matches all widgets
...
well... :D
thanks man!
making stuff outside of {}s is possile, I guess, but when I have all these others {}s, Qt seems to get problems with deciding what to use and then it uses nothing (f.ex. the border-color)
So the following works perfectly well now:

*{
	background-color: #111111;
	color: #9aacd1;  
	border: 0px solid transparent;
}
QGroupBox {
	background-color: #202020;
	border: 0px solid #2d8bed;
	border-radius: 0px;
}
QLineEdit, QPlainTextEdit{                                                           
	background-color: transparent /*#3f3f46*/;                                       
	border: 1px solid rgba( 255, 255, 255, .3);                      
	border-radius: 5px;                                              
}
QPushButton {
	border: 2px solid #333333;
	border-radius: 6px;
	background-color: #161616;
	min-width: 0px;
	min-height: 20px;
}

QPushButton:pressed {
	background-color: #404040;
}
QPushButton:checked {
	color: #ffffff;
	border: none;
}
QScrollArea {
	background-color: #202020;
	border: 0px solid #2d8bed;
	border-radius: 0px;
}
QScrollArea > QWidget > QWidget { background: transparent; } 
/* because the QScrollArea has a content widget and I want the 
background of also this contentwidget to be that background set. 
so I tell the contentwidget to be transparent*/
QSplitter::handle {
	background-color: rgba(45, 139, 237, 200);
	border: 1px solid #2d8bed;
	width: 5px;
	height: 5px;
	margin-top: 2px;
	margin-bottom: 2px;
	border-radius: 4px;
}
QTabWidget::pane {
	border: 0px solid black;
	background-color: #202020;
}
QTabWidget {
	border: 0px solid black;
	background-color: #202020;
}

It also made a difference weather putting the global stuff (without {}s) at the beginning or at the end ot the qss. Can't say why, but it changed the result partially