diff --git a/src/css/layui.css b/src/css/layui.css
index 15f4754f..f78ae747 100644
--- a/src/css/layui.css
+++ b/src/css/layui.css
@@ -1173,17 +1173,17 @@ body .layui-table-tips .layui-layer-content{background: none; padding: 0; box-sh
 .layui-dropdown-shade{top: 0; left: 0; width: 100%; height: 100%; _height: expression(document.body.offsetHeight+"px"); position: fixed; _position: absolute; pointer-events: auto;}
 
 /** 导航菜单 **/
-.layui-nav{position: relative; padding: 0 20px; background-color: #393D49; color: #fff; border-radius: 2px; font-size: 0; box-sizing: border-box;}
+.layui-nav{position: relative; padding: 0 15px; background-color: #393D49; color: #fff; border-radius: 2px; font-size: 0; box-sizing: border-box;}
 .layui-nav *{font-size: 14px;}
-.layui-nav .layui-nav-item{position: relative; display: inline-block; *display: inline; *zoom: 1; vertical-align: middle; line-height: 60px;}
+.layui-nav .layui-nav-item{position: relative; display: inline-block; *display: inline; *zoom: 1; margin-top: 0; list-style: none; vertical-align: middle; line-height: 60px;}
 .layui-nav .layui-nav-item a{display: block; padding: 0 20px; color: #fff; color: rgba(255,255,255,.7); transition: all .3s; -webkit-transition: all .3s;}
 .layui-nav-bar,
 .layui-nav .layui-this:after{content: ""; position: absolute; left: 0; top: 0; width: 0; height: 5px; background-color: #5FB878; transition: all .2s; -webkit-transition: all .2s; pointer-events: none;}
 .layui-nav-bar{z-index: 1000;}
 .layui-nav[lay-bar="disabled"] .layui-nav-bar{display: none;}
 .layui-nav[lay-bar="disabled"].layui-this:after{}
-.layui-nav .layui-this a
-,.layui-nav .layui-nav-item a:hover{color: #fff;}
+.layui-nav .layui-this a,
+.layui-nav .layui-nav-item a:hover{color: #fff; text-decoration: none;}
 .layui-nav .layui-this:after{top: auto; bottom: 0; width: 100%;}
 .layui-nav-img{width: 30px; height: 30px; margin-right: 10px; border-radius: 50%;}
 
@@ -1201,7 +1201,8 @@ body .layui-table-tips .layui-layer-content{background: none; padding: 0; box-sh
 .layui-nav-child-r{left: auto; right: 0;}
 .layui-nav-child-c{text-align: center;}
 
-/* 垂直导航菜单 */.layui-nav-tree{width: 200px; padding: 0;}
+/* 垂直导航菜单 */
+.layui-nav.layui-nav-tree{width: 200px; padding: 0;}
 .layui-nav-tree .layui-nav-item{display: block; width: 100%; line-height: 40px;}
 .layui-nav-tree .layui-nav-item a{position: relative; height: 40px; line-height: 40px; text-overflow: ellipsis; overflow: hidden; white-space: nowrap;}
 .layui-nav-tree .layui-nav-item>a{padding-top: 5px; padding-bottom: 5px;}