diff --git a/themes/oldtheme/assets/css/common/post-single.css b/themes/oldtheme/assets/css/common/post-single.css
index 36cfe2e..6771db2 100644
--- a/themes/oldtheme/assets/css/common/post-single.css
+++ b/themes/oldtheme/assets/css/common/post-single.css
@@ -40,12 +40,12 @@
 
 .post-content {   
     padding-top: var(--gap);
-    font-size: 16px;
-    font-weight: 380;
+    font-size: 16.5px;
+    font-weight: 400;
     font-family: inherit;
     color: var(--content);
     letter-spacing: 0.1px;
-    line-height: 1.8;
+    line-height: 2;
 }
 
 .post-content h3,