QTableWidget Stylesheet Issue

In QtCreator (11.0.3 ), I placed a QTableWidget, and set stylesheet (thru QtCreator interface) as follows;
 
{{QTableView

{background-color: rgb(47, 177, 83);font: 22pt "Arial"; selection-color: rgb(0, 85, 0);color: rgb(255, 255, 255);}

QTableView::item

{ border: 0px; padding: 25px;}

}}

Formatting are are taking effect; but row size is not increasing to accommodate text.
But if the same is done thru code, (ui->tablewidget->SetStylesheet(...)), row size is increasing.

What I had to do to retain stylesheet done in Qt Creator is to add a line as following in code;
 
ui->tablewidget->setStyleSheet(ui->tablewidget->styleSheet());

This fixes the issue. Sample image is added; first image without the line in code.