diff --git a/_config.yml b/_config.yml
index 9d2f3b6..c09f355 100644
--- a/_config.yml
+++ b/_config.yml
@@ -154,10 +154,10 @@ mathjax:
   every_page: false
 plantuml:
   #  Local or PlantUMLServer.
-  render: "Local"
+  render: "PlantUMLServer"
 
   # the server,you can change your self-hosted sever for privacy
-  # server: "http://www.plantuml.com/plantuml"
+  server: "http://www.plantuml.com/plantuml"
   # "inline": <svg>xxx<svg/>
   # "inlineUrlEncode": <img src='data:image/svg+xml;>
   # "inlineBase64": <img src='data:image/svg+xml;base64>
@@ -166,7 +166,7 @@ plantuml:
   link: "inline"
 
   GraphvizDotFile: "/usr/local/bin/dot"
-  PlantJar: "/Users/midnite/Libs/plantuml/plantuml.jar"
+  # PlantJar: "/Users/midnite/Libs/plantuml/plantuml.jar"
 
   # common options: svg/png
   outputFormat: "svg"
diff --git a/scripts/filter/header-renderer.js b/scripts/filter/header-renderer.js
new file mode 100644
index 0000000..5ef7713
--- /dev/null
+++ b/scripts/filter/header-renderer.js
@@ -0,0 +1,6 @@
+hexo.extend.filter.register("marked:renderer", function(renderer) {
+    const { config } = this;
+    renderer.heading = function(text, level) {
+        return `<h${level} id="${text}">${text}</h${level}>`;
+    };
+});
\ No newline at end of file
diff --git a/themes/grid/source/css/style.less b/themes/grid/source/css/style.less
index 942a114..a88bb65 100644
--- a/themes/grid/source/css/style.less
+++ b/themes/grid/source/css/style.less
@@ -154,7 +154,9 @@ article {
     }
     h2, h3, h4, h5, h6 {
         &[id]:target {
+            position: relative;
             padding-top: 92px;
+            margin-top: -72px;
         }
     }
 }
\ No newline at end of file