Contrary to the spec, CSS setting text-align: center is ignored by QLabel (other settings like font-size and color are respected): from PyQt6.QtWidgets import QApplication, QLabel app = QApplication([]) label = QLabel("This is centered?") label.setStyleSheet(""" QLabel { background-color: #333; color: orange; text-align: center; } """) label.resize(300, 100) label.show() app.exec() Is this a known bug? Is there a workaround? Continue reading...