.

css/okadmin-v2.css

@@ -415,7 +415,6 @@
     left: 0;
 }
 
-
 .ok-tab-title cite {
     padding-left: 5px;
     font-style: normal;
@@ -477,6 +476,18 @@
     z-index: 1;
     overflow: hidden
 }
+.okadmin .content-body:after {
+    content: "";
+    max-height: 1px;
+    min-height: 1px;
+    height: 1px;
+    background: #e6e6e6;
+    z-index: 999;
+    width: 100%;
+    display: block;
+    position: absolute;
+    top: 40px;
+}
 
 .okadmin-tabs-select.layui-nav .layui-nav-item {
     line-height: 40px;
@@ -493,10 +504,10 @@
 }
 
 /*主体内容选项卡内容样式*/
-.content-body .layui-tab {
+.content-body .layui-tab{
     margin: 0;
+    /*position: relative;*/
 }
-
 .okadmin .content-body .layui-tab-content {
     position: absolute;
     top: 40px;