diff --git a/src/pyj/read_book/globals.pyj b/src/pyj/read_book/globals.pyj
index 2a858d592d..1edcf1e9c3 100644
--- a/src/pyj/read_book/globals.pyj
+++ b/src/pyj/read_book/globals.pyj
@@ -56,6 +56,9 @@ def flow_viewport_scroll_into_view(elem):
 def flow_reset_globals():
     pass
 
+def flow_reset_transforms():
+    pass
+
 def paged_viewport_y():
     return 0
 
@@ -64,6 +67,7 @@ scroll_viewport.y = flow_viewport_y
 scroll_viewport.scroll_to = flow_viewport_scroll_to
 scroll_viewport.scroll_into_view = flow_viewport_scroll_into_view
 scroll_viewport.reset_globals = flow_reset_globals
+scroll_viewport.reset_transforms = flow_reset_transforms
 
 if is_ios:
     window_width = def ():
@@ -101,10 +105,12 @@ if is_ios:
             p = p.offsetParent
         # left -= window_width() // 2
         paged_viewport_scroll_to(max(0, left), 0)
-    paged_reset_globals = def():
-        document.documentElement.style.transform = 'none'
     paged_content_width = def():
         return document.documentElement.scrollWidth
+    paged_reset_transforms = def():
+        document.documentElement.style.transform = 'none'
+    paged_reset_globals = def():
+        paged_reset_transforms()
 
 else:
     window_width = def():
@@ -117,6 +123,8 @@ else:
     paged_reset_globals = flow_reset_globals
     paged_content_width = def():
         return document.documentElement.scrollWidth
+    paged_reset_transforms = def():
+        pass
 
 scroll_viewport.width = window_width
 scroll_viewport.height = window_height
@@ -135,12 +143,14 @@ def set_layout_mode(val):
         scroll_viewport.scroll_to = flow_viewport_scroll_to
         scroll_viewport.scroll_into_view = flow_viewport_scroll_into_view
         scroll_viewport.reset_globals = flow_reset_globals
+        scroll_viewport.reset_transforms = flow_reset_transforms
     else:
         scroll_viewport.x = paged_viewport_x
         scroll_viewport.y = paged_viewport_y
         scroll_viewport.scroll_to = paged_viewport_scroll_to
         scroll_viewport.scroll_into_view = paged_viewport_scroll_into_view
         scroll_viewport.reset_globals = paged_reset_globals
+        scroll_viewport.reset_transforms = paged_reset_transforms
 
 def current_spine_item():
     return current_spine_item.value
diff --git a/src/pyj/read_book/paged_mode.pyj b/src/pyj/read_book/paged_mode.pyj
index 9f85239d20..52da86d3f0 100644
--- a/src/pyj/read_book/paged_mode.pyj
+++ b/src/pyj/read_book/paged_mode.pyj
@@ -341,6 +341,7 @@ def jump_to_anchor(name):
 
 def scroll_to_elem(elem):
     scroll_viewport.scroll_into_view(elem)
+    scroll_viewport.reset_transforms()  # needed for viewport_to_document()
 
     if in_paged_mode:
         # Ensure we are scrolled to the column containing elem
@@ -365,6 +366,7 @@ def snap_to_selection():
     # Ensure that the viewport is positioned at the start of the column
     # containing the start of the current selection
     if in_paged_mode:
+        scroll_viewport.reset_transforms()  # needed for viewport_to_document()
         sel = window.getSelection()
         r = sel.getRangeAt(0).getBoundingClientRect()
         node = sel.anchorNode