fix(modal): do not hide the scroll bar when opening the pop-up window vbenjs#151

Author: anncwb

src/design/index.less

@@ -39,7 +39,8 @@ html,
 body {
   width: 100%;
   height: 100%;
-  overflow-x: hidden;
+  overflow: visible !important;
+  overflow-x: hidden !important;
 
   &.color-weak {
     filter: invert(80%);