diff --git a/weboob/browser/selenium.py b/weboob/browser/selenium.py
index a4eedb45449cbf6ebe04459bd839eeeeb634f7b8..3885b0eab8600282a47e763da949a0adf9f28374 100644
--- a/weboob/browser/selenium.py
+++ b/weboob/browser/selenium.py
@@ -403,6 +403,14 @@ class SeleniumBrowser(object):
 
     """Default wait time for `wait_*` methods"""
 
+    WINDOW_SIZE = None
+
+    """Rendering window size
+
+    It can be useful for responsive websites which show or hide elements depending
+    on the viewport size.
+    """
+
     BASEURL = None
 
     MAX_SAVED_RESPONSES = (1 << 30)  # limit to 1GiB
@@ -475,6 +483,9 @@ def _setup_driver(self):
         else:
             raise NotImplementedError()
 
+        if self.WINDOW_SIZE:
+            self.driver.set_window_size(*self.WINDOW_SIZE)
+
     ### Browser
     def deinit(self):
         if self.driver: