diff --git a/Libraries/LibWeb/Layout/LayoutBlock.cpp b/Libraries/LibWeb/Layout/LayoutBlock.cpp
index f53dd9c8b2..591142e201 100644
--- a/Libraries/LibWeb/Layout/LayoutBlock.cpp
+++ b/Libraries/LibWeb/Layout/LayoutBlock.cpp
@@ -103,9 +103,17 @@ void LayoutBlock::layout_absolutely_positioned_descendant(LayoutBox& box)
         - box_model.offset().bottom.to_px(box)
         - box_model.border_box(box).bottom;
 
-    if (!box_model.offset().left.is_auto() || !box_model.margin().left.is_auto()) {
+    bool has_left_side_constraints = !box_model.offset().left.is_auto() || !box_model.margin().left.is_auto();
+    bool has_right_side_constraints = !box_model.offset().right.is_auto() || !box_model.margin().right.is_auto();
+
+    if (has_left_side_constraints && has_right_side_constraints) {
+        // If both 'left' and 'right' are set, we will have stretched the width to accomodate both.
+        x_offset += box_model.offset().right.to_px(box);
+    }
+
+    if (has_left_side_constraints) {
         used_offset.set_x(x_offset + box_model.margin().left.to_px(box));
-    } else if (!box_model.offset().right.is_auto() || !box_model.margin().right.is_auto()) {
+    } else if (has_right_side_constraints) {
         used_offset.set_x(width() + x_offset - box.width() - box_model.margin().right.to_px(box));
     }