diff --git a/src/components/PreviewModal.vue b/src/components/PreviewModal.vue
index 55b7eed..f3815ff 100644
--- a/src/components/PreviewModal.vue
+++ b/src/components/PreviewModal.vue
@@ -112,11 +112,22 @@
             :style="{
               transform: `scale(${previewZoom}) translate(${viewportOffset.x}px, ${viewportOffset.y}px)`,
               cursor: isCanvasDragging ? 'grabbing' : 'move',
+              width: `${store.cellSize.width}px`,
+              height: `${store.cellSize.height}px`,
+              backgroundImage: `
+                linear-gradient(45deg, #1a1a1a 25%, transparent 25%),
+                linear-gradient(-45deg, #1a1a1a 25%, transparent 25%),
+                linear-gradient(45deg, transparent 75%, #1a1a1a 75%),
+                linear-gradient(-45deg, transparent 75%, #1a1a1a 75%)
+              `,
+              backgroundSize: '10px 10px',
+              backgroundPosition: '0 0, 0 5px, 5px -5px, -5px 0px',
+              backgroundColor: '#2d3748',
             }"
             @mousedown.stop="startCanvasDrag"
             title="Drag to move sprite within cell"
           >
-            <canvas ref="animCanvas" class="block pixel-art"></canvas>
+            <canvas ref="animCanvas" class="block pixel-art absolute top-0 left-0"></canvas>
           </div>
         </div>
       </div>