diff --git a/LunaTranslator/LunaTranslator/rendertext/exampleextrahtml.html b/LunaTranslator/LunaTranslator/rendertext/exampleextrahtml.html
index da98a35e..6f164adc 100644
--- a/LunaTranslator/LunaTranslator/rendertext/exampleextrahtml.html
+++ b/LunaTranslator/LunaTranslator/rendertext/exampleextrahtml.html
@@ -1,4 +1,4 @@
-<div div="example_hello">Hello, welcome to use LunaTranslator</div>
+<div id="example_hello">Hello, welcome to use LunaTranslator</div>
 <script>
     // alert("welcome")
     clear_all = function () {
@@ -9,7 +9,7 @@
 <style>
     body::before {
         background-image: url("https://image.lunatranslator.xyz/luna.jpg");
-        opacity: 0.6;
+        opacity: 0.5;
         background-size: 100% auto;
         content: '';
         position: fixed;