Merge branch 'version1.4.1'

src/css/index.less

@@ -149,7 +149,7 @@
       position: absolute;
       top: 50%;
       right: 0;
-      z-index: 100;
+      // z-index: 1;
     }
     &>ul{
       overflow-x: hidden;
@@ -901,7 +901,6 @@
     opacity: 0.5;
     left: 0;
     top: 0;
-    z-index: 101;
   }
   .loadingImg{
     position: fixed;