diff --git a/components/auto-complete/demo/uncertain-category.md b/components/auto-complete/demo/uncertain-category.md
index 28e6822472..108fc02ea4 100644
--- a/components/auto-complete/demo/uncertain-category.md
+++ b/components/auto-complete/demo/uncertain-category.md
@@ -85,7 +85,12 @@ class Complete extends React.Component {
         >
           <Input
             suffix={
-              <Button className="search-btn" size="large" type="primary">
+              <Button
+                className="search-btn"
+                style={{ marginRight: -12 }}
+                size="large"
+                type="primary"
+              >
                 <Icon type="search" />
               </Button>
             }
@@ -116,10 +121,6 @@ ReactDOM.render(<Complete />, mountNode);
   padding-right: 62px;
 }
 
-.global-search.ant-select-auto-complete .ant-input-affix-wrapper .ant-input-suffix {
-  right: 0;
-}
-
 .global-search.ant-select-auto-complete .ant-input-affix-wrapper .ant-input-suffix button {
   border-top-left-radius: 0;
   border-bottom-left-radius: 0;