diff --git a/editor.php b/editor.php
index 3f56bc9..a1ebcac 100644
--- a/editor.php
+++ b/editor.php
@@ -36,7 +36,7 @@ $activeLineBG = array_search($ICEcoder["theme"],array("3024-day","base16-light",
 .cm-s-activeLine {background: <?php echo $activeLineBG;?> !important}
 .cm-matchhighlight, .CodeMirror-focused .cm-matchhighlight {color: #fff !important; background: #06c !important}
 /* Make sure this next one remains the 5th item, updated with JS */
-.cm-tab:after {position: relative; display: inline-block; width: 0; left: -1.4em; overflow: visible; color: #aaa; content: "<?php if($ICEcoder["visibleTabs"]) {echo '\\21e5';};?>";}
+.cm-tab {border-left: <?php echo $ICEcoder["visibleTabs"] ? "1px" : "0";?>; border-left-style: solid; border-left-color: rgba(255,255,255,0.2)}
 .cm-trailingspace {
         background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAACCAYAAAB/qH1jAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3QUXCToH00Y1UgAAACFJREFUCNdjPMDBUc/AwNDAAAFMTAwMDA0OP34wQgX/AQBYgwYEx4f9lQAAAABJRU5ErkJggg==);
         background-position: bottom left;
diff --git a/lib/ice-coder.js b/lib/ice-coder.js
index 81fa879..9b708c7 100644
--- a/lib/ice-coder.js
+++ b/lib/ice-coder.js
@@ -1729,7 +1729,7 @@ var ICEcoder = {
 		cMCSS = ICEcoder.content.contentWindow.document.styleSheets[4];
 		strCSS = cMCSS.rules ? 'rules' : 'cssRules';
 		cMCSS[strCSS][0].style['fontSize'] = fontSize;
-		cMCSS[strCSS][4].style['content'] = visibleTabs ? '"\\21e5"' : '" "';
+		cMCSS[strCSS][4].style['border-left-width'] = visibleTabs ? '1px' : '0';
 		cMCSS[strCSS][2].style.cssText = "background-color: " + activeLineBG + " !important";
 
 		top.ICEcoder.lineWrapping = lineWrapping;
diff --git a/lib/settings-screen.php b/lib/settings-screen.php
index 108652e..d3ab9ec 100644
--- a/lib/settings-screen.php
+++ b/lib/settings-screen.php
@@ -14,7 +14,7 @@
 .CodeMirror {position: absolute; width: 409px; height: 240px; font-size: <?php echo $ICEcoder["fontSize"];?>}
 .CodeMirror-scroll {overflow: hidden}
 /* Make sure this next one remains the 3rd item, updated with JS */
-.cm-tab:after {position: relative; display: inline-block; width: 0; left: -1.4em; overflow: visible; color: #aaa; content: "<?php if($ICEcoder["visibleTabs"]) {echo '\21e5';};?>";}
+.cm-tab {border-left: <?php echo $ICEcoder["visibleTabs"] ? "1px" : "0";?>; border-left-style: solid; border-left-color: rgba(255,255,255,0.2)}
 </style>
 
 <link rel="stylesheet" href="editor.css">
@@ -231,7 +231,7 @@ var showButton = function() {
 var showHideTabs = function() {
 	cMCSS = document.styleSheets[2];
 	cMCSS.rules ? strCSS = 'rules' : strCSS = 'cssRules';
-	document.settings.visibleTabs.checked ? cMCSS[strCSS][2].style['content'] = '"\\21e5"' : cMCSS[strCSS][2].style['content'] = '" "';
+	cMCSS[strCSS][2].style['border-left-width'] = document.settings.visibleTabs.checked ? '1px' : '0';
 }
 
 var validatePasswords = function() {