Update app.py

app.py

@@ -61,7 +61,7 @@ def run_script(url: str, height: int, width: int, check_b,check_h):
 
             driver.set_window_size(int(width), int(height))
             page = driver.find_element(By.TAG_NAME, "html")
-            driver.execute_script(f"arguments[0].style={css_};",page)
+            driver.execute_script(f"arguments[0].style='{css_}';",page)
             print (dir(page))
             #page.send_keys('theme','gab-black')
             dk=page.get_attribute('theme')