PyQt5 - Different border width to lineedit part on mouse hover (for non editable Combo box)

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys


class Window(QMainWindow):

    def __init__(self):
        super().__init__()

        # setting title
        self.setWindowTitle("Python ")

        # setting geometry
        self.setGeometry(100, 100, 600, 400)

        # calling method
        self.UiComponents()

        # showing all the widgets
        self.show()

    # method for widgets
    def UiComponents(self):
        # creating a check-able combo box object
        self.combo_box = QComboBox(self)

        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 80)

        # geek list
        geek_list = ["Sayian", "Super Sayian", "Super Sayian 2", "Super Sayian B"]

        # adding list of items to combo box
        self.combo_box.addItems(geek_list)

        # creating line edit object
        line_edit = QLineEdit()

        # setting border to the line edit part
        # set different border width when mouse hover over it
        line_edit.setStyleSheet("QLineEdit"
                                "{"
                                "border : 2px solid black"
                                "}"
                                "QLineEdit::hover"
                                "{"
                                "border-width : 1px 10px 2px 5px;"
                                "}")

        # making line edit read only
        line_edit.setReadOnly(True)

        # adding line edit object to the combo box
        self.combo_box.setLineEdit(line_edit)


# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())