Fix styling

Author: reakaleek

resources/asciidoctor/lib/chunker/url_to_v3.rb

@@ -45,14 +45,14 @@ def get_actual_url(outdir, current_url)
     def render_warning(doc, version, new_url)
       if version == '8.18'
         @url = Asciidoctor::Block.new(doc, :pass, source: <<~HTML)
-          <div id="url-to-v3" style="version-warning">
+          <div id="url-to-v3" class="version-warning">
             A newer version is available. For the latest information, see the <a href="https://www.elastic.co#{new_url}">current release documentation</a>
           </div>
         HTML
       else
         @url = Asciidoctor::Block.new(doc, :pass, source: <<~HTML)
           <div id="url-to-v3" class="version-warning">
-            <bold>IMPORTANT</bold>: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the <a href="https://www.elastic.co#{new_url}">current release documentation</a>
+            <strong>IMPORTANT</strong>: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the <a href="https://www.elastic.co#{new_url}">current release documentation</a>
           </div>
         HTML
       end