diff --git a/Public/AdsensePlacement/Infrastructure/Ui/AdsensePlacementRenderer.php b/Public/AdsensePlacement/Infrastructure/Ui/AdsensePlacementRenderer.php
index 44ae1fcc..922993b6 100644
--- a/Public/AdsensePlacement/Infrastructure/Ui/AdsensePlacementRenderer.php
+++ b/Public/AdsensePlacement/Infrastructure/Ui/AdsensePlacementRenderer.php
@@ -644,6 +644,14 @@ final class AdsensePlacementRenderer
         $cssRules[] = $this->cssGenerator->generate('.roi-anchor-controls-right', ['right' => '8px']);
         $cssRules[] = $this->cssGenerator->generate('.roi-anchor-controls-center', ['left' => '50%', 'transform' => 'translateX(-50%)']);
 
+        // CRITICAL: El contenedor del anuncio DEBE tener width 100% para que AdSense pueda calcular el tamaño
+        $cssRules[] = $this->cssGenerator->generate('.roi-anchor-content', [
+            'width' => '100%',
+            'display' => 'flex',
+            'align-items' => 'center',
+            'justify-content' => 'center',
+        ]);
+
         // Buttons
         $cssRules[] = $this->cssGenerator->generate('.roi-anchor-btn', [
             'width' => '28px',