diff --git a/ace/index.html b/ace/index.html
index 8c82f58..a83651c 100644
--- a/ace/index.html
+++ b/ace/index.html
@@ -57,7 +57,7 @@
     </head>
     <body>
         <div class="toolbar">
-            <!--<button id="btnSave" onClick="save()" class="btn btn_g">save</button>-->
+            <button id="btnSave" onClick="save()" class="btn btn_g">⇩</button>
             <button id="btnUndo" onClick="editor.undo()" class="btn">↶</button>
             <button id="btnRedo" onClick="editor.redo()" class="btn btn_g">↷</button>
           	<button id="btnFs" onclick="toggleFullscreen()" class="btn">◻</button>
@@ -85,7 +85,7 @@
                 document.getElementById("btnUndo").disabled = !editor.session.getUndoManager().hasUndo();
                 document.getElementById("btnRedo").disabled = !editor.session.getUndoManager().hasRedo();
                 if (!window.fullscreen) {
-                    document.getElementById("btnFs").style.display = "block";
+                    document.getElementById("btnFs").style.display = "compact";
                 }
             }
             editor.on("input", updateToolbar);
