clip forged cell height in table

Author: LucienLee

src/App.vue

@@ -38,5 +38,5 @@ a
   -moz-osx-font-smoothing: grayscale
 
 .dataTable
-  margin: $nav-height*2 0
+  margin: $nav-height*2 0 $nav-height
 </style>

src/components/DgTable.vue

@@ -273,6 +273,7 @@ $arrow-size: 8px
   margin: 0 auto
   border-collapse: collapse
   text-align: left
+  overflow: hidden
 
 .header
   position: relative