Merge pull request #50 from visuddhinanda/master

:art: guide 宽度不应固定

app/guide/guide.css

@@ -1,8 +1,10 @@
 guide{
     position: relative;
     display:inline-block;
-    width:14px;
-    height:14px;
+    width: auto;
+    min-width: 14px;
+    height: auto;
+    min-height: 14px;
     cursor: pointer;
     background: url(guide_icon.svg);
     background-repeat: no-repeat;