QSS QTabBar text-align does not work

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

Code:

---

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

---

I try, but it was also not working:

Code:

---

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

---

My QTabWidget:

Code:

---

<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) ?