diff --git a/public/themes/simpleboot3/portal/index/index.html b/public/themes/simpleboot3/portal/index/index.html
index 277e112..8381d65 100644
--- a/public/themes/simpleboot3/portal/index/index.html
+++ b/public/themes/simpleboot3/portal/index/index.html
@@ -31,7 +31,7 @@
                 <img src="__TMPL__/public/assets/images/1.png" alt="">
                 <input type="text" name="book_name" placeholder="输入书籍名称">
             </div>
-            <div ><button type="submit" class="in_search_no">搜索</button></div>
+            <div class="in_search_no"><button type="submit">搜索</button></div>
         </div>
     </form>
     <!-- banner -->