fix menu z-index, to be smaller than 1000 (dialog, mask, modal)
@ -5,7 +5,7 @@
margin-bottom: 0;
padding-left: 0; // Override default ul/ol
list-style: none;
z-index: 1001;
z-index: 999;
border: 1px solid #d9d9d9;
box-shadow: @overlay-shadow;
border-radius: @border-radius-base;