Merge pull request #1133 from GSA/content-review-alert

Author: btylerburton

_includes/components/uswds_alert.html

@@ -0,0 +1,5 @@
+<div class="usa-alert usa-alert--emergency">
+    <div class="usa-alert__body">
+        <h4 class="usa-alert__heading">This site is under review and content may change</h4>
+    </div>
+</div>

_includes/header.html

@@ -2,6 +2,9 @@
 <a class="sr-only-focusable" id="skiplink" href="#main-content" tabindex="0">{{ page.t.header.skip_link }}</a>
 {% include components/uswds_banner.html %}
 {% include components/header/internet-explorer-message.html %}
+<div class="container">
+    {% include components/uswds_alert.html %}
+</div>
 <div id="disclaimer">
     {% include components/dev-disclaimer.html %}
 </div>
@@ -10,7 +13,9 @@
     <div class="container">
         <nav class="navbar navbar-expand-lg navbar-light flex-wrap align-items-start">
             {% include components/header/logo.html %}
-            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="{{ page.t.header.show_menu }}">
+            <button class="navbar-toggler" type="button" data-bs-toggle="collapse"
+                data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false"
+                aria-label="{{ page.t.header.show_menu }}">
                 <span class="navbar-toggler-icon"></span>
             </button>
             <div class="d-flex flex-wrap w-100 justify-content-between">