diff --git a/drawMapGUI.html b/drawMapGUI.html
index d110da46..2a753a9e 100644
--- a/drawMapGUI.html
+++ b/drawMapGUI.html
@@ -5,7 +5,7 @@
     <style>
       html,body,div,img{margin:0;padding:0;}
       body{
-        font-family:Roboto,Helvetica,Arial,sans-serif;
+        font-family: -apple-system,"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","WenQuanYi Micro Hei","Microsoft Yahei",sans-serif;
         background-color: #F5F5F5;
       }
       ::-webkit-scrollbar {
@@ -46,7 +46,8 @@
         margin-left: 22px;
         margin-top: 21px;
         line-height: 20px;
-        font: 400 13.3333px Arial;
+        font-size: 13.3333px;
+        font-family: monospace;
       }
       #editTip{
         position: absolute;