优化样式

.gitmodules

 [submodule "lib/kity"]
 	path = lib/kity
-	url = https://github.com/fex-team/kity
-[submodule "lib/promise"]
-	path = lib/promise
-	url = https://github.com/jakearchibald/es6-promise
+	url = https://github.com/fex-team/kity
\ No newline at end of file

example.html

@@ -20,7 +20,7 @@
             left: 10px;
             top: 10px;
             bottom: 10px;
-            right: 210px;
+            right: 10px;
         }
     </style>
 

src/kityminder.css

 .km-view {
-    font-family:  "Microsoft Yahei", "Heiti SC", Arial, sans-serif;
+    font-family: "STHeitiSC-Light", "STHeiti", "Hei", "Heiti SC", "Microsoft Yahei", Arial, sans-serif;
     -webkit-user-select: none;
     user-select: none;
     position:  relative;