-

diff --git a/skin/light/light.css b/skin/light/light.css
index cb74524..c92d5e1 100644
--- a/skin/light/light.css
+++ b/skin/light/light.css
@@ -11,11 +11,56 @@
     padding: 0 !important;
     background: transparent !important;
     background-color: #FBFBFB !important;
+    height: 100vh;
+}
+
+.tabbrowser-tab {
+  width: 260px !important;
+  /*width: 100% !important;*/
+}
+
+#browser {
+  display: block;
+  position:relative;
+  height: 100vh;
+}
+
+#verticaltabs-box {
+  box-shadow: inset 0 0 10px rgba(0,0,0,0.4);
+  width: 40px;
+  display: flex;
+  flex-direction: column;
+  position: absolute;
+  left: 0;
+  top: 0;
+  height: 100vh;
+  transition: width 500ms ease-in-out;
+  z-index: 3;
+}
+
+#verticaltabs-box:hover {
+  width: 260px;
+  box-shadow: 0 0 10px rgba(0,0,0,0.4);
+}
+
+/*#browser-box {*/
+#appcontent {
+  position: absolute;
+  left: 40px;
+}
+
+#navigator-toolbox,
+.browserContainer {
+  width: calc(100vw - 40px);
+}
+
+.browserContainer {
+  height: 100vh;
 }
 
 .tabbrowser-tab {
     -moz-box-pack: start;
-    -moz-box-flex: 0;
+    -moz-box-flex: 1;
     -moz-appearance: none !important;
     background: transparent !important;
     border: 0 !important;
diff --git a/verticaltabs.jsm b/verticaltabs.jsm
index 99363a6..428f734 100644
--- a/verticaltabs.jsm
+++ b/verticaltabs.jsm
@@ -152,14 +152,6 @@ VerticalTabs.prototype = {
         leftbox.id = "verticaltabs-box";
         browserbox.insertBefore(leftbox, contentbox);
 
-        let splitter = document.createElementNS(NS_XUL, "splitter");
-        splitter.id = "verticaltabs-splitter";
-        splitter.className = "chromeclass-extrachrome";
-        browserbox.insertBefore(splitter, contentbox);
-        // Hook up event handler for splitter so that the width of the
-        // tab bar is persisted.
-        splitter.addEventListener("mouseup", this, false);
-
         // Move the tabs next to the app content, make them vertical,
         // and restore their width from previous session
         if (Services.prefs.getBoolPref("extensions.verticaltabs.right")) {
@@ -171,7 +163,6 @@ VerticalTabs.prototype = {
         tabs.orient = "vertical";
         tabs.mTabstrip.orient = "vertical";
         tabs.tabbox.orient = "horizontal"; // probably not necessary
-        tabs.setAttribute("width", Services.prefs.getIntPref("extensions.verticaltabs.width"));
 
         // Move the tabs toolbar into the tab strip
         let toolbar = document.getElementById("TabsToolbar");
@@ -236,11 +227,9 @@ VerticalTabs.prototype = {
             }
 
             // Remove all the crap we added.
-            splitter.removeEventListener("mouseup", this, false);
             browserbox.removeChild(leftbox);
-            browserbox.removeChild(splitter);
             browserbox.dir = "normal";
-            leftbox = splitter = null;
+            leftbox = null;
         });
     },
 
@@ -294,10 +283,6 @@ VerticalTabs.prototype = {
     onTabbarResized: function() {
         let tabs = this.document.getElementById("tabbrowser-tabs");
         this.setPinnedSizes();
-        this.window.setTimeout(function() {
-            Services.prefs.setIntPref("extensions.verticaltabs.width",
-                                      tabs.boxObject.width);
-        }, 10);
     },
 
     observeRightPref: function () {
@@ -370,12 +355,6 @@ VerticalTabs.prototype = {
         this.initTab(aEvent.target);
     },
 
-    onMouseUp: function(aEvent) {
-        if (aEvent.target.getAttribute("id") == "verticaltabs-splitter") {
-            this.onTabbarResized();
-        }
-    },
-
     onPopupShowing: function(aEvent) {
         if (!this.multiSelect)
             return;