Fixed top menu.

Author: jaywcjlove

theme/default/component/Header/index.less

@@ -20,6 +20,8 @@
   line-height: 54px;
   min-height: 54px;
   position: relative;
+  position: fixed;
+  width: 100%;
   z-index: 9;
   .wapper {
     max-width: 1200px;

theme/default/layout/BasicLayout.less

@@ -7,7 +7,7 @@
 }
 
 .wapperContent {
-  padding: 15px 0 0 0;
+  padding: 75px 0 0 0;
   max-width: 1200px;
   margin: 0px auto 0;
 }