gddo-server/assets: add Black Lives Matter banner

Change-Id: I14308b23539760cd54577daabc7617eb40c75e6e
Reviewed-on: https://go-review.googlesource.com/c/gddo/+/237601
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Julie Qiu <julie@golang.org>
diff --git a/gddo-server/assets/site.css b/gddo-server/assets/site.css
index f05feb4..2c63f38 100644
--- a/gddo-server/assets/site.css
+++ b/gddo-server/assets/site.css
@@ -93,7 +93,7 @@
 
 .navbar-default, #x-footer {
     background-color: hsl(209, 51%, 92%);
-    border-color: hsl(209, 51%, 88%);
+    border: none;
 }
 
 .navbar-default .navbar-nav > .active > a,
@@ -107,6 +107,18 @@
     color: #000;
 }
 
+.navbar-blm {
+    background-color: #000;
+    color: #fff;
+    padding: 1rem 0;
+    text-align: center;
+}
+.navbar-blm a:link,
+.navbar-blm a:visited {
+    color: #fff;
+    text-decoration: underline;
+}
+
 .banner {
     align-items: center;
     background-color: #fffbe0;
diff --git a/gddo-server/assets/templates/layout.html b/gddo-server/assets/templates/layout.html
index 4bd077a..d35f4a8 100644
--- a/gddo-server/assets/templates/layout.html
+++ b/gddo-server/assets/templates/layout.html
@@ -8,24 +8,30 @@
 </head>
 <body>
 <nav class="navbar navbar-default" role="navigation">
+  <div class="navbar-blm">
+    Black Lives Matter.
+    <a href="https://support.eji.org/give/153413/#!/donation/checkout"
+       target="_blank"
+       rel="noopener">Support the Equal Justice Initiative.</a>
+  </div>
   <div class="container">
-  <div class="navbar-header">
-    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
-      <span class="sr-only">Toggle navigation</span>
-      <span class="icon-bar"></span>
-      <span class="icon-bar"></span>
-      <span class="icon-bar"></span>
-    </button>
-    <a class="navbar-brand" href="/"><strong>GoDoc</strong></a>
+    <div class="navbar-header">
+      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
+        <span class="sr-only">Toggle navigation</span>
+        <span class="icon-bar"></span>
+        <span class="icon-bar"></span>
+        <span class="icon-bar"></span>
+      </button>
+      <a class="navbar-brand" href="/"><strong>GoDoc</strong></a>
+    </div>
+    <div class="collapse navbar-collapse">
+      <ul class="nav navbar-nav">
+          <li{{if equal "home.html" templateName}} class="active"{{end}}><a href="/">Home</a></li>
+          <li{{if equal "about.html" templateName}} class="active"{{end}}><a href="/-/about">About</a></li>
+      </ul>
+      <form class="navbar-nav navbar-form navbar-right" id="x-search" action="/" role="search"><input class="form-control" id="x-search-query" type="text" name="q" placeholder="Search"></form>
+    </div>
   </div>
-  <div class="collapse navbar-collapse">
-    <ul class="nav navbar-nav">
-        <li{{if equal "home.html" templateName}} class="active"{{end}}><a href="/">Home</a></li>
-        <li{{if equal "about.html" templateName}} class="active"{{end}}><a href="/-/about">About</a></li>
-    </ul>
-    <form class="navbar-nav navbar-form navbar-right" id="x-search" action="/" role="search"><input class="form-control" id="x-search-query" type="text" name="q" placeholder="Search"></form>
-  </div>
-</div>
 </nav>
 <div class="banner">
   <div class="banner-message">