Fixed intro page for active sidebar

Change-Id: I68084871dfbbc194139bc0d93b1367f31b0545cf
diff --git a/dev/scss/media.scss b/dev/scss/media.scss
index ddd26fa..ae6dad8 100644
--- a/dev/scss/media.scss
+++ b/dev/scss/media.scss
@@ -127,7 +127,7 @@
       font-size: 9pt;
       line-height: 1em;
     }
-    &.active + main div.intro {
+    &.active ~ main div.intro {
       margin-left: $standard-margin !important;
     }