diff --git a/src/main/java/com/shuzijun/leetcode/plugin/editor/LCVPreview.java b/src/main/java/com/shuzijun/leetcode/plugin/editor/LCVPreview.java
index 4c0c8bf7..0b549e99 100644
--- a/src/main/java/com/shuzijun/leetcode/plugin/editor/LCVPreview.java
+++ b/src/main/java/com/shuzijun/leetcode/plugin/editor/LCVPreview.java
@@ -39,6 +39,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
 
 /**
  * @author shuzijun
@@ -191,7 +192,7 @@ private String getStyle(boolean isTag) {
             sb.append("}");
             sb.append("::-webkit-scrollbar-track {background-color:").append(toHexColor(defaultBackground)).append(";}");
             sb.append("::-webkit-scrollbar-thumb {background-color:").append(toHexColor(scrollbarThumbColor)).append(";}");
-            sb.append(".vditor-reset {font-size:").append(editorColorsScheme.getEditorFontSize()).append(";");
+            sb.append(".vditor-reset {font-size:").append(editorColorsScheme.getEditorFontSize()).append("px;");
             sb.append(fontFamily);
             if (text != null) {
                 sb.append("color:").append(toHexColor(text)).append(";");
@@ -207,6 +208,9 @@ private String getStyle(boolean isTag) {
 
     private String toHexColor(Color color) {
         DecimalFormat df = new DecimalFormat("0.00");
+        DecimalFormatSymbols dfs = new DecimalFormatSymbols();
+        dfs.setDecimalSeparator('.');
+        df.setDecimalFormatSymbols(dfs);
         return String.format("rgba(%s,%s,%s,%s)", color.getRed(), color.getGreen(), color.getBlue(), df.format(color.getAlpha() / (float) 255));
     }
 
diff --git a/src/main/java/com/shuzijun/leetcode/plugin/timer/TimerStatusBarWidgetProvider.java b/src/main/java/com/shuzijun/leetcode/plugin/timer/TimerStatusBarWidgetProvider.java
index 098a7a46..926d96f2 100644
--- a/src/main/java/com/shuzijun/leetcode/plugin/timer/TimerStatusBarWidgetProvider.java
+++ b/src/main/java/com/shuzijun/leetcode/plugin/timer/TimerStatusBarWidgetProvider.java
@@ -1,7 +1,6 @@
 package com.shuzijun.leetcode.plugin.timer;
 
 import com.intellij.openapi.project.Project;
-import com.intellij.openapi.util.Disposer;
 import com.intellij.openapi.wm.StatusBar;
 import com.intellij.openapi.wm.StatusBarWidget;
 import com.intellij.openapi.wm.StatusBarWidgetFactory;
@@ -16,7 +15,6 @@
  */
 public class TimerStatusBarWidgetProvider implements StatusBarWidgetFactory {
 
-    private TimerBarWidget timerBarWidget;
 
     @Override
     public @NonNls @NotNull String getId() {
@@ -35,21 +33,15 @@ public boolean isAvailable(@NotNull Project project) {
 
     @Override
     public @NotNull StatusBarWidget createWidget(@NotNull Project project) {
-        if (timerBarWidget == null) {
-            timerBarWidget = new TimerBarWidget(project);
-        }
-        return timerBarWidget;
+        return new TimerBarWidget(project);
     }
 
     @Override
     public void disposeWidget(@NotNull StatusBarWidget widget) {
-        if (timerBarWidget != null) {
-            Disposer.dispose(timerBarWidget);
-        }
     }
 
     @Override
     public boolean canBeEnabledOn(@NotNull StatusBar statusBar) {
-        return false;
+        return true;
     }
 }