QSS QTabBar text-align does not work

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I try (font-weigth: works, but text-align: does not work):


QTabBar::tab:text{
font-weight:bold;
text-align:left;
}

I try, but it was also not working:


QTabBar::tab {
font-weight:bold;
text-align:left;
}

My QTabWidget:


<item>
<widget class="QTabWidget" name="tabWidget">
<widget class="QWidget" name="tab">
<attribute name="title">
<string>Tab 1</string>
</attribute>
</widget>
<widget class="QWidget" name="tab_2">
<attribute name="title">
<string>Tab 2</string>
</attribute>
</widget>
</widget>
</item>

I also have not found any “property” (<property name=”…”>) that aligns the text.

how to use the “QSS” to align the text of the tabs (QTabBar/QTabWidget) ?