Create #paige-alert

README.md

@@ -982,6 +982,8 @@ Use CSS selectors to extend the default styling.
 Page identifiers:
 
 <dl>
+    <dt><code>#paige-alert</code></dt>
+    <dd>The page alert.</dd>
     <dt><code>#paige-article</code></dt>
     <dd>The article.</dd>
     <dt><code>#paige-authors</code></dt>

layouts/partials/paige/page-header.html

@@ -74,7 +74,7 @@
     {{ end }}
 
     {{ with $page.Param "paige.alert" }}
-        <div class="alert alert-{{ .type }} my-3" role="alert">{{ .message | markdownify }}</div>
+        <div class="alert alert-{{ .type }} my-3" id="paige-alert" role="alert">{{ .message | markdownify }}</div>
     {{ end }}
 
     {{ if and $page.Content (ne $page.TableOfContents `<nav id="TableOfContents"></nav>`) }}