Calculate margin width using collapse_border_{left,right}_width for c…

…ollapsed-borders mode
Kozea · May 25, 2023 · d87034f · d87034f
1 parent 800a683
commit d87034f
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/weasyprint/layout/preferred.py b/weasyprint/layout/preferred.py
@@ -148,9 +148,15 @@ def margin_width(box, width, left=True, right=True):
                 percentages += style_value.value
 
     if left:
-        width += box.style['border_left_width']
+        if box.style['border_collapse'] and 'collapse_border_left_width' in box.style:
+            width += box.style['collapse_border_left_width']
+        else:
+            width += box.style['border_left_width']
     if right:
-        width += box.style['border_right_width']
+        if box.style['border_collapse'] and 'collapse_border_right_width' in box.style:
+            width += box.style['collapse_border_right_width']
+        else:
+            width += box.style['border_right_width']
 
     if percentages < 100:
         return width / (1 - percentages / 100)