diff --git a/g2-center.css b/g2-center.css
index 90539af..3cac276 100644
--- a/g2-center.css
+++ b/g2-center.css
@@ -294,7 +294,7 @@ h6 code {
 /* h1标题样式 */
 
 h1 {
-    margin-top: 2.2rem;
+    margin-top: 2.5rem;
     text-align: center;
     padding-bottom: .2em;
     font-size: 2.25em;
@@ -302,6 +302,14 @@ h1 {
     /* border-bottom: 1px solid #eee; */
 }
 
+h1:after {
+    content: '';
+    display: block;
+    margin: 0.2em auto 0;
+    width: 4em;
+    height: 2px;
+    border-bottom: 2px solid var(--main-6);
+}
 
 /* h2标题样式 */
 
diff --git a/g2-left.css b/g2-left.css
index 1eaaa7a..c2dd752 100644
--- a/g2-left.css
+++ b/g2-left.css
@@ -302,6 +302,24 @@ h1 {
     /* border-bottom: 1px solid #eee; */
 }
 
+h1:after {
+    content: '';
+    display: block;
+    margin: 0.2em auto 0 0;
+    width: 4em;
+    height: 2px;
+    border-bottom: 2px solid var(--main-6);
+}
+
+h1[title]:after {
+    content: '';
+    display: block;
+    margin: 0.2em auto 0;
+    width: 4em;
+    height: 2px;
+    border-bottom: 2px solid var(--main-6);
+}
+
 
 /* h2标题样式 */
 
diff --git a/zj.css b/zj.css
index dac6ca1..6659cf0 100644
--- a/zj.css
+++ b/zj.css
@@ -184,7 +184,7 @@ h3 a {
 }
 
 h1 {
-    text-align: left;
+    text-align: center;
     padding-bottom: 0.3em;
     font-size: 2.2em;
     line-height: 1.2;