diff --git a/index.html b/index.html
index d9230d0..35c9808 100644
--- a/index.html
+++ b/index.html
@@ -90,7 +90,7 @@
       <div class="editor" id="gfxEditorDiv">
         <canvas id="gfxEditorDrawCanvas" width="8" height="8" style="width: 256px"></canvas>
         <canvas id="gfxEditorPalette" width="16" height="64" style="width: 32px; margin-left: 2px"></canvas>
-        <div width="100%" style="overflow: scroll; display: none">
+        <div style="overflow: auto">
           <canvas id="gfxEditorTilesCanvas"></canvas>
         </div>
       </div>
diff --git a/js/gfx-editor.js b/js/gfx-editor.js
index d2fa2b8..f1abcc1 100644
--- a/js/gfx-editor.js
+++ b/js/gfx-editor.js
@@ -15,11 +15,6 @@ export function register(div_id) {
   tile_canvas = document.getElementById('gfxEditorTilesCanvas');
   draw_canvas = document.getElementById('gfxEditorDrawCanvas');
   palette_canvas = document.getElementById('gfxEditorPalette');
-  new ResizeObserver(function () {
-    tile_canvas.parentElement.style.maxWidth = main_div.clientWidth;
-    tile_canvas.parentElement.style.maxHeight = main_div.clientHeight - 300;
-    tile_canvas.parentElement.style.display = '';
-  }).observe(main_div);
 
   draw_canvas.onmousemove = function (e) {
     var rect = e.target.getBoundingClientRect();