diff --git a/background.jpg b/background.jpg
index 98c549c..e015c25 100644
Binary files a/background.jpg and b/background.jpg differ
diff --git a/exam/index.html b/exam/index.html
index bbb1036..6e4faf2 100644
--- a/exam/index.html
+++ b/exam/index.html
@@ -1,5 +1,5 @@
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diff --git a/index.html b/index.html
index b4088aa..642a9f4 100644
--- a/index.html
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@@ -21,7 +21,7 @@
佛祖保佑 永无BUG
-->
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