multiple fonts in pyqt5?

Question

I made a Gui in qt designer and I was wondering if I could add multiple fonts so that it works on multiple Operating systems.

I'm thinking of something like this:

<span style="font-family: arial, helvetica ,sans-serif">
   <font size="1">
       [Country]
   </font>
</span>

The fonts i want are Consolas, Menlo, DejaVu Sans Mono, monospace

Heres the python code for my gui so far:

from PySide2.QtCore import *
from PySide2.QtGui import *
from PySide2.QtWidgets import *


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        if not MainWindow.objectName():
            MainWindow.setObjectName(u"MainWindow")
        MainWindow.resize(1000, 1000)
        MainWindow.setMinimumSize(QSize(1000, 1000))
        MainWindow.setWindowIcon(icon)
        MainWindow.setStyleSheet(u"background-color: rgb(31, 36, 33);")
        self.centralwidget = QWidget(MainWindow)
        self.centralwidget.setObjectName(u"centralwidget")
        self.welcomeMessage = QLabel(self.centralwidget)
        self.welcomeMessage.setObjectName(u"welcomeMessage")
        self.welcomeMessage.setGeometry(QRect(30, 160, 951, 41))
        sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.welcomeMessage.sizePolicy().hasHeightForWidth())
        self.welcomeMessage.setSizePolicy(sizePolicy)
        self.welcomeMessage.setCursor(QCursor(Qt.ArrowCursor))
        self.welcomeMessage.setFocusPolicy(Qt.NoFocus)
        self.welcomeMessage.setLayoutDirection(Qt.LeftToRight)
        self.welcomeMessage.setStyleSheet(u"font: 30pt \"Consolas\"; color: rgb(240, 240, 240);")
        self.welcomeMessage.setTextFormat(Qt.AutoText)
        self.welcomeMessage.setScaledContents(False)
        self.welcomeMessage.setAlignment(Qt.AlignCenter)
        self.welcomeMessage.setWordWrap(False)
        self.welcomeMessage.setMargin(0)
        self.welcomeMessage.setOpenExternalLinks(False)
        self.pushButton = QPushButton(self.centralwidget)
        self.pushButton.setObjectName(u"pushButton")
        self.pushButton.setGeometry(QRect(160, 620, 681, 141))
        self.pushButton.setStyleSheet(u"color: rgb(31, 36, 33); font: 20pt \"Consolas\"; background-color: rgb(240, 240, 240); \n"
"selection-color: rgb(41, 47, 43);\n"
"")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QMenuBar(MainWindow)
        self.menubar.setObjectName(u"menubar")
        self.menubar.setGeometry(QRect(0, 0, 1000, 26))
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QStatusBar(MainWindow)
        self.statusbar.setObjectName(u"statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)

        QMetaObject.connectSlotsByName(MainWindow)
    # setupUi

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(QCoreApplication.translate("MainWindow", u"Password Generator", None))
#if QT_CONFIG(whatsthis)
        self.welcomeMessage.setWhatsThis("")
#endif // QT_CONFIG(whatsthis)
        self.welcomeMessage.setText(QCoreApplication.translate("MainWindow", u"Welcome to the Password Generator!", None))
        self.pushButton.setText(QCoreApplication.translate("MainWindow", u"Click here to generate a password!", None))
    # retranslateUi

I havent tried using multiple fonts on it yet.