diff --git a/app/views/shixuns/index.html.erb b/app/views/shixuns/index.html.erb
index 6c6b6d9a3..5492adbf2 100644
--- a/app/views/shixuns/index.html.erb
+++ b/app/views/shixuns/index.html.erb
@@ -40,7 +40,7 @@
     </div>
     <div class="course-nav-row bottomdashed1 clearfix">
       <span class="fl color-grey check_item">技术平台</span>
-      <div class="course-nav-row_item bd">
+      <div class="course-nav-row_item bd fl with90">
         <ul class="inner-nav fl">
           <li class="fl check_on">
             <input type="radio" class="undis" name="language" id="language_0" value="">