diff --git a/output/outputs.go b/output/outputs.go
index 53cf56a..28ce33c 100644
--- a/output/outputs.go
+++ b/output/outputs.go
@@ -137,6 +137,8 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 			for {
 				buf, err := outReader.ReadString('\n')
 
+				// TODO: fix the duplicated error
+
 				if nil != err {
 					// remove the exited process from user process set
 					processes.remove(wSession, cmd.Process)
diff --git a/static/user/admin/style.css b/static/user/admin/style.css
new file mode 100644
index 0000000..2f2f376
--- /dev/null
+++ b/static/user/admin/style.css
@@ -0,0 +1,12 @@
+body {
+    font-family: Helvetica, 'Microsoft Yahei';
+}
+
+input,
+button {
+    font-family: Helvetica, 'Microsoft Yahei';
+}
+
+.edit-exprinfo, .CodeMirror, .CodeMirror-hints {
+    font-size: 9;
+}
\ No newline at end of file