diff --git a/tabeleditor.inc.php b/tabeleditor.inc.php
index 432213e..eebc831 100644
--- a/tabeleditor.inc.php
+++ b/tabeleditor.inc.php
@@ -92,6 +92,7 @@
 </style>
 <div id="ruler" style="display: block; word-wrap: break-word"></div>
 <script>
+  var backuped_style;
   var sem = 0;
   function blur_handler(e) {
     var value = e.target.value;
@@ -100,7 +101,7 @@
     var entry_name = "__buttons_"+cellid;
     var entry = document.getElementById(entry_name);
 
-    elm.style = "";
+    elm.style = backuped_style;
     if (elm.initial_value != value) {
         elm.style.color= "red";
         document.getElementById("__buttons").style.visibility = "visible";
@@ -171,6 +172,8 @@
     var container = document.querySelector('.style_td');
     var style = window.getComputedStyle(container);
 
+    backuped_style = elm.style;
+
     elm.value = value;
     elm.style.width = (e.target.clientWidth-5) + "px";
     elm.style.height = (e.target.clientHeight-5) + "px";