Improve subnavigation style

app/assets/stylesheets/sections/nav.scss

@@ -8,8 +8,6 @@
   ul {
     padding: 0;
     margin: auto;
-    height: 40px;
-    overflow: hidden;
     .count {
       font-weight: normal;
       display: inline-block;
@@ -37,40 +35,14 @@
         a {
           color: $link_color;
           font-weight: bold;
-          &:after {
-            content: '';
-            display: block;
-            position: relative;
-            bottom: -1px;
-            border-color: $link_color;
-            border-style: solid;
-            border-width: 2px;
-          }
+          border-bottom: 3px solid $link_color;
         }
       }
 
       &:hover {
         a {
           color: $link_hover_color;
-          &:after {
-            content: '';
-            display: block;
-            position: relative;
-            bottom: -1px;
-            border-color: $link_hover_color;
-            border-style: solid;
-            border-width: 2px;
-          }
-        }
-      }
-
-      &.home {
-        a {
-          i {
-            font-size: 20px;
-            position: relative;
-            top: 4px;
-          }
+          border-bottom: 3px solid $link_hover_color;
         }
       }
     }
@@ -78,12 +50,13 @@
       display: block;
       text-align: center;
       font-weight: 500;
-      height: 38px;
-      line-height: 34px;
+      height: 42px;
+      line-height: 39px;
       color: #777;
       text-shadow: 0 1px 1px white;
       text-decoration: none;
-      padding-top: 2px;
+      overflow: hidden;
+      margin-bottom: -1px;
     }
   }