diff --git a/media/css/file_view_extra.css b/media/css/file_view_extra.css
index 8b0fe55fb4..7151894aa9 100644
--- a/media/css/file_view_extra.css
+++ b/media/css/file_view_extra.css
@@ -9,8 +9,7 @@
 #view-hd,
 #shared-file-view-hd,
 #view-path-op,
-#file-op,
-#sf-commit-op {
+#file-op {
     width:950px;
     margin:0 auto;
 }
@@ -44,7 +43,6 @@
     border:1px solid #ededed;
     margin-top:12px;
 }
-#sf,
 #md-view,
 .CodeMirror,
 #file-view-tip {
@@ -52,7 +50,6 @@
     margin:0 auto;
     box-shadow:0 0 6px #ccc;
 }
-#sf,
 #md-view {
     min-height:400px;
 }
diff --git a/media/css/seahub.css b/media/css/seahub.css
index 74be8551f3..21276efe7d 100644
--- a/media/css/seahub.css
+++ b/media/css/seahub.css
@@ -2776,13 +2776,7 @@ textarea:-moz-placeholder {/* for FF */
 #file-edit-cancel {
     vertical-align:middle; /* for ie 7 */
 }
-#sf {
-    width:624px;
-    /*font-size:15px;*/
-    font-size:medium;
-    background:#fff;
-}
-#sf, #md-view {
+#md-view {
     padding:40px 96px;
 }
 #md-edit-help {