diff --git a/aula202-calculadora/buttons.py b/aula202-calculadora/buttons.py
new file mode 100644
index 0000000..b98d89f
--- /dev/null
+++ b/aula202-calculadora/buttons.py
@@ -0,0 +1,15 @@
+from PySide6.QtWidgets import QPushButton
+from variables import MEDIUM_FONT_SIZE
+
+
+class Button(QPushButton):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.configStyle()
+
+    def configStyle(self):
+        font = self.font()
+        font.setPixelSize(MEDIUM_FONT_SIZE)
+        self.setFont(font)
+        self.setMinimumSize(75, 75)
+        self.setProperty('cssClass', 'specialButton')
diff --git a/aula202-calculadora/main.py b/aula202-calculadora/main.py
index 34e95d2..f33956a 100644
--- a/aula202-calculadora/main.py
+++ b/aula202-calculadora/main.py
@@ -1,5 +1,6 @@
 import sys
 
+from buttons import Button
 from display import Display
 from info import Info
 from main_window import MainWindow
@@ -27,6 +28,12 @@ if __name__ == '__main__':
     display = Display()
     window.addToVLayout(display)
 
+    button = Button('Texto do botão')
+    window.addToVLayout(button)
+
+    button2 = Button('Texto do botão')
+    window.addToVLayout(button2)
+
     # Executa tudo
     window.adjustFixedSize()
     window.show()
diff --git a/aula202-calculadora/styles.py b/aula202-calculadora/styles.py
index c25f2c5..11949fd 100644
--- a/aula202-calculadora/styles.py
+++ b/aula202-calculadora/styles.py
@@ -7,15 +7,15 @@ from variables import (DARKER_PRIMARY_COLOR, DARKEST_PRIMARY_COLOR,
                        PRIMARY_COLOR)
 
 qss = f"""
-    PushButton[cssClass="specialButton"] {{
+    QPushButton[cssClass="specialButton"] {{
         color: #fff;
         background: {PRIMARY_COLOR};
     }}
-    PushButton[cssClass="specialButton"]:hover {{
+    QPushButton[cssClass="specialButton"]:hover {{
         color: #fff;
         background: {DARKER_PRIMARY_COLOR};
     }}
-    PushButton[cssClass="specialButton"]:pressed {{
+    QPushButton[cssClass="specialButton"]:pressed {{
         color: #fff;
         background: {DARKEST_PRIMARY_COLOR};
     }}