QTableWidget showing white line

[deepal_de]

hello

I have attached a image of my tablewidget. i have highlighted area in red..
i wont to remove it...

TableWidget.png

its a tablewidget inside a panel and its inside Gridlayout with no spacing in layout.

i have 2 stylesheets
Panle style sheet :-

background-color: qlineargradient(spread:pad, x1:0.489, y1:0, x2:0.489, y2:0.086, stop:0 rgba(209, 224, 255, 255), stop:0.977273 rgba(255, 255, 255, 255));

background-color: qlineargradient(spread:pad, x1:0.489, y1:0, x2:0.489, y2:0.086, stop:0 rgba(209, 224, 255, 255), stop:0.977273 rgba(255, 255, 255, 255));

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Tablewidgeet stylesheet :-

/* QHeaderView::section {
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:0.892, stop:0 rgba(212, 236, 255, 255), stop:1 rgba(225, 240, 255, 255));
  
     border: 1px solid rgb(188,188,191);
 }*/
QHeaderView::section { 
	background-color: qlineargradient(spread:reflect, x1:0.500318, y1:1, x2:0.512, y2:0.211, stop:0.0795455 rgba(164, 221, 255, 234), stop:1 rgba(234, 254, 255, 227));
border: 1px solid rgb(188,188,191);
}
 
 
QTableWidget{
	gridline-color: rgb(188, 188, 188);
     background-color: rgba(255, 255, 255,0);
	/*alternate-background-color: rgba(241, 241, 241,190);*/
}
 
QTableWidget::item::selected{
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(229, 255, 189, 245), stop:1 rgba(229, 255, 189, 255));
selection-color:black;
}
 
/*=====================================================*/
QScrollBar { 
 
	background-color: rgb(255, 255, 255);
}

/* QHeaderView::section {
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:0.892, stop:0 rgba(212, 236, 255, 255), stop:1 rgba(225, 240, 255, 255));
  
     border: 1px solid rgb(188,188,191);
 }*/
QHeaderView::section { 
	background-color: qlineargradient(spread:reflect, x1:0.500318, y1:1, x2:0.512, y2:0.211, stop:0.0795455 rgba(164, 221, 255, 234), stop:1 rgba(234, 254, 255, 227));
border: 1px solid rgb(188,188,191);
}


QTableWidget{
	gridline-color: rgb(188, 188, 188);
     background-color: rgba(255, 255, 255,0);
	/*alternate-background-color: rgba(241, 241, 241,190);*/
}

QTableWidget::item::selected{
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(229, 255, 189, 245), stop:1 rgba(229, 255, 189, 255));
selection-color:black;
}

/*=====================================================*/
QScrollBar { 
	
	background-color: rgb(255, 255, 255);
}

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