gddo-server/assets: update banner

The banner for godoc.org is updated to this design:

https://photos.app.goo.gl/sm8w3QFF4ewoJUNu9

Change-Id: Iaf7e12218ace5d1f87c6d0131b86f71d4835406b
Reviewed-on: https://go-review.googlesource.com/c/gddo/+/278152
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Trust: Julie Qiu <julie@golang.org>
diff --git a/gddo-server/assets/site.css b/gddo-server/assets/site.css
index 2c63f38..883b32f 100644
--- a/gddo-server/assets/site.css
+++ b/gddo-server/assets/site.css
@@ -121,24 +121,24 @@
 
 .banner {
     align-items: center;
-    background-color: #fffbe0;
+    background-color: #fedc00;
     display: flex;
-    justify-content: space-between;
+    justify-content: center;
     margin-bottom: 20px;
     min-height: 40px;
     padding: 8px 16px;
 }
 
 .banner-message {
-    margin-right: 90px;
+    text-align: right;
 }
 
 .banner-action-container {
-    text-align: right;
     white-space: nowrap;
 }
 
 .banner-action {
+    margin-right: 90px;
     white-space: nowrap;
 }
 
diff --git a/gddo-server/assets/templates/layout.html b/gddo-server/assets/templates/layout.html
index d35f4a8..4541aa0 100644
--- a/gddo-server/assets/templates/layout.html
+++ b/gddo-server/assets/templates/layout.html
@@ -34,12 +34,11 @@
   </div>
 </nav>
 <div class="banner">
-  <div class="banner-message">
-    Pkg.go.dev is a new destination for Go discovery & docs. Check it out at {{template "PkgGoDevLink" $}} and share your feedback.
-  </div>
   <div class="banner-action-container">
-    <a class="banner-action" href="?redirect=on">Always use pkg.go.dev</a>
-    <a class="banner-action" href="https://blog.golang.org/pkg.go.dev-2020">Learn more</a>
+    <a class="banner-action" href="?redirect=on"><b>Set default to always use pkg.go.dev</b></a>
+  </div>
+  <div class="banner-message">
+    Requests to this page will redirect to {{template "PkgGoDevLink" $}} in early 2021. <a href="https://blog.golang.org/godoc.org-redirect">Learn More.</a>
   </div>
 </div>