diff --git a/package.json b/package.json
index 38d2093..fe6bcc6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pan-converter",
-  "version": "1.7.5",
+  "version": "1.7.6",
   "description": "Cross-platform Markdown editor and converter using Pandoc",
   "main": "src/main.js",
   "scripts": {
diff --git a/src/styles.css b/src/styles.css
index 8adbf40..b240f54 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -326,7 +326,6 @@ body {
 
 #preview table th, .preview-content table th {
     font-weight: 600;
-    background-color: #f6f8fa;
 }
 
 #preview table tr:nth-child(2n), .preview-content table tr:nth-child(2n) {
@@ -449,9 +448,6 @@ body.theme-dark .preview-content table th, body.theme-dark .preview-content tabl
     border-color: #3e3e42;
 }
 
-body.theme-dark #preview table th, body.theme-dark .preview-content table th {
-    background-color: #2d2d30;
-}
 
 body.theme-dark #preview table tr:nth-child(2n), body.theme-dark .preview-content table tr:nth-child(2n) {
     background-color: #2d2d30;