diff --git a/lib/_base.scss b/lib/_base.scss
index 2e66e46..3dde340 100644
--- a/lib/_base.scss
+++ b/lib/_base.scss
@@ -84,8 +84,7 @@
     border-radius: 4px;
 
     code {
-      margin-inline-start: inherit;
-      margin-inline-end: inherit;
+      margin: 0;
       padding: 0;
       border: 0;
       border-radius: 0;
diff --git a/lib/_inline.scss b/lib/_inline.scss
index 8857082..a213084 100644
--- a/lib/_inline.scss
+++ b/lib/_inline.scss
@@ -157,18 +157,19 @@
     }
   }
 
-  //b,
-  //cite,
-  //dfn,
-  //em,
-  //strong {
-  //  margin-inline-start: 1px;
-  //  margin-inline-end: 1px;
-  //}
+  // 为所有加划线的元素增加缝隙
+  abbr[title],
+  del,
+  ins,
+  s,
+  u {
+    margin-inline-start: 1px;
+    margin-inline-end: 1px;
+  }
 
   // 带边框的元素，两个相连时添加间距，以防止视觉上混为一个元素
   // @todo: 此处有一个问题：如果结构是 <u>倚天</u>和<u>屠龙</u>，「屠龙」前面仍然会有边距。此处跟预期不一致，应该只在两个同名元素紧邻时增加边距，即：<u>倚天剑</u><u>屠龙刀</u>
-  //@each $tag in (abbr, del, ins, s, u) {
+  //@each $tag in (abbr[title], del, ins, s, u) {
   //  #{$tag} + #{$tag} {
   //    margin-inline-start: 0.125em;
   //  }
diff --git a/package.json b/package.json
index a4fa890..385d189 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "heti",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "赫蹏",
   "main": "index.scss",
   "directories": {