diff --git a/.gitignore b/.gitignore
index 94afaf5..e5cc71c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,7 +6,8 @@
 .bundle
 .jekyll-metadata
 .jekyll-cache
-_site
+_site/
 .project
 .settings/
 .rvm/
+Gemfile.lock
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index 471d197..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,70 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    addressable (2.8.1)
-      public_suffix (>= 2.0.2, < 6.0)
-    colorator (1.1.0)
-    concurrent-ruby (1.1.10)
-    em-websocket (0.5.3)
-      eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0)
-    eventmachine (1.2.7)
-    ffi (1.15.5)
-    forwardable-extended (2.6.0)
-    http_parser.rb (0.8.0)
-    i18n (1.12.0)
-      concurrent-ruby (~> 1.0)
-    jekyll (4.2.2)
-      addressable (~> 2.4)
-      colorator (~> 1.0)
-      em-websocket (~> 0.5)
-      i18n (~> 1.0)
-      jekyll-sass-converter (~> 2.0)
-      jekyll-watch (~> 2.0)
-      kramdown (~> 2.3)
-      kramdown-parser-gfm (~> 1.0)
-      liquid (~> 4.0)
-      mercenary (~> 0.4.0)
-      pathutil (~> 0.9)
-      rouge (~> 3.0)
-      safe_yaml (~> 1.0)
-      terminal-table (~> 2.0)
-    jekyll-sass-converter (2.2.0)
-      sassc (> 2.0.1, < 3.0)
-    jekyll-watch (2.2.1)
-      listen (~> 3.0)
-    json (2.6.1)
-    kramdown (2.4.0)
-      rexml
-    kramdown-parser-gfm (1.1.0)
-      kramdown (~> 2.0)
-    liquid (4.0.3)
-    listen (3.7.1)
-      rb-fsevent (~> 0.10, >= 0.10.3)
-      rb-inotify (~> 0.9, >= 0.9.10)
-    mercenary (0.4.0)
-    pathutil (0.16.2)
-      forwardable-extended (~> 2.6)
-    public_suffix (4.0.7)
-    rb-fsevent (0.11.2)
-    rb-inotify (0.10.1)
-      ffi (~> 1.0)
-    rexml (3.2.5)
-    rouge (3.30.0)
-    safe_yaml (1.0.5)
-    sassc (2.4.0)
-      ffi (~> 1.9)
-    terminal-table (2.0.0)
-      unicode-display_width (~> 1.1, >= 1.1.1)
-    unicode-display_width (1.8.0)
-
-PLATFORMS
-  x86_64-darwin-21
-  x86_64-linux
-
-DEPENDENCIES
-  jekyll
-  json
-
-BUNDLED WITH
-   2.3.23
diff --git a/_config.yml b/_config.yml
index a25f0d5..0f31b71 100644
--- a/_config.yml
+++ b/_config.yml
@@ -5,8 +5,10 @@
 encoding:       UTF-8
 highlighter:    rouge
 kramdown:
-  input:              GFM
+  input: GFM
   syntax_highlighter: rouge
+  auto_ids: true
+  toc_levels: 1..3
 
 # Simplifies introducing changes related to the latest release
 current_version: 6.3.0.2
diff --git a/docker-arm64-serve.sh b/docker-arm64-serve.sh
new file mode 100644
index 0000000..9cdf262
--- /dev/null
+++ b/docker-arm64-serve.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+docker run --rm -v "$PWD:/var/jekyll" -p 4000:4000 -it mrxder/jekyll-docker-arm64:latest jekyll serve --host=0.0.0.0 --incremental
diff --git a/source/_layouts/default.html b/source/_layouts/default.html
index f5cd550..475bdfb 100644
--- a/source/_layouts/default.html
+++ b/source/_layouts/default.html
@@ -13,7 +13,7 @@
   <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet">
   <link href="/css/main.css" rel="stylesheet">
   <link href="/css/custom.css" rel="stylesheet">
-  <link href="/highlighter/github-theme.css" rel="stylesheet">
+  <link href="/css/syntax.css" rel="stylesheet">
 
   <script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
   <script type="text/javascript" src="/bootstrap/js/bootstrap.js"></script>
diff --git a/source/core-developers/file-upload-interceptor.md b/source/core-developers/file-upload-interceptor.md
index b5799c1..cc0dd8a 100644
--- a/source/core-developers/file-upload-interceptor.md
+++ b/source/core-developers/file-upload-interceptor.md
@@ -8,7 +8,8 @@
 
 # File Upload Interceptor
 
-> Since Struts 6.4.0 this interceptor is deprecated, please use [Action File Upload Interceptor](action-file-upload-interceptor) instead!
+Since Struts 6.4.0 this interceptor is deprecated, please use [Action File Upload Interceptor](action-file-upload-interceptor) instead!
+{:.alert .alert-warning}
 
 See [this page](file-upload) for more examples and advanced configuration.
 
diff --git a/source/core-developers/file-upload.md b/source/core-developers/file-upload.md
index 0f61e2a..aa2223e 100644
--- a/source/core-developers/file-upload.md
+++ b/source/core-developers/file-upload.md
@@ -13,7 +13,7 @@
 {:toc}
 
 Since Struts 6.4.0 the `FileUploadInterceptor` is deprecated, and you should use [ActionFileUploadInterceptor](action-file-upload-interceptor) instead!
-{:.alert .alert-block .alert-error}
+{:.alert .alert-warning}
 
 The Struts 2 framework provides built-in support for processing file uploads that conform to [RFC 1867](http://www.ietf.org/rfc/rfc1867.txt), 
 "Form-based File Upload in HTML". When correctly configured the framework will pass uploaded file(s) into your Action
diff --git a/source/core-developers/interceptors.md b/source/core-developers/interceptors.md
index e11f6cb..a1d0b52 100644
--- a/source/core-developers/interceptors.md
+++ b/source/core-developers/interceptors.md
@@ -10,7 +10,7 @@
 {:.no_toc}
 
 * Will be replaced with the ToC, excluding a header
-  {:toc}
+{:toc}
 
 The default Interceptor stack is designed to serve the needs of most applications. Most applications will **not** need
 to add Interceptors or change the Interceptor stack.
diff --git a/source/css/main.css b/source/css/main.css
index 6fc1377..862cea4 100644
--- a/source/css/main.css
+++ b/source/css/main.css
@@ -6661,8 +6661,6 @@
 }
 
 .alert {
-  background-color: #3165a7;
-  color: #fff;
   padding: 1rem 1.25rem;
   margin: 1em 0;
   border: none;
diff --git a/source/css/syntax.css b/source/css/syntax.css
index 2774b76..2af5601 100644
--- a/source/css/syntax.css
+++ b/source/css/syntax.css
@@ -1,60 +1,213 @@
-.highlight  { background: #ffffff; }
-.highlight .c { color: #999988; font-style: italic } /* Comment */
-.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
-.highlight .k { font-weight: bold } /* Keyword */
-.highlight .o { font-weight: bold } /* Operator */
-.highlight .cm { color: #999988; font-style: italic } /* Comment.Multiline */
-.highlight .cp { color: #999999; font-weight: bold } /* Comment.Preproc */
-.highlight .c1 { color: #999988; font-style: italic } /* Comment.Single */
-.highlight .cs { color: #999999; font-weight: bold; font-style: italic } /* Comment.Special */
-.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
-.highlight .gd .x { color: #000000; background-color: #ffaaaa } /* Generic.Deleted.Specific */
-.highlight .ge { font-style: italic } /* Generic.Emph */
-.highlight .gr { color: #aa0000 } /* Generic.Error */
-.highlight .gh { color: #999999 } /* Generic.Heading */
-.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
-.highlight .gi .x { color: #000000; background-color: #aaffaa } /* Generic.Inserted.Specific */
-.highlight .go { color: #888888 } /* Generic.Output */
-.highlight .gp { color: #555555 } /* Generic.Prompt */
-.highlight .gs { font-weight: bold } /* Generic.Strong */
-.highlight .gu { color: #aaaaaa } /* Generic.Subheading */
-.highlight .gt { color: #aa0000 } /* Generic.Traceback */
-.highlight .kc { font-weight: bold } /* Keyword.Constant */
-.highlight .kd { font-weight: bold } /* Keyword.Declaration */
-.highlight .kp { font-weight: bold } /* Keyword.Pseudo */
-.highlight .kr { font-weight: bold } /* Keyword.Reserved */
-.highlight .kt { color: #445588; font-weight: bold } /* Keyword.Type */
-.highlight .m { color: #009999 } /* Literal.Number */
-.highlight .s { color: #d14 } /* Literal.String */
-.highlight .na { color: #008080 } /* Name.Attribute */
-.highlight .nb { color: #0086B3 } /* Name.Builtin */
-.highlight .nc { color: #445588; font-weight: bold } /* Name.Class */
-.highlight .no { color: #008080 } /* Name.Constant */
-.highlight .ni { color: #800080 } /* Name.Entity */
-.highlight .ne { color: #990000; font-weight: bold } /* Name.Exception */
-.highlight .nf { color: #990000; font-weight: bold } /* Name.Function */
-.highlight .nn { color: #555555 } /* Name.Namespace */
-.highlight .nt { color: #000080 } /* Name.Tag */
-.highlight .nv { color: #008080 } /* Name.Variable */
-.highlight .ow { font-weight: bold } /* Operator.Word */
-.highlight .w { color: #bbbbbb } /* Text.Whitespace */
-.highlight .mf { color: #009999 } /* Literal.Number.Float */
-.highlight .mh { color: #009999 } /* Literal.Number.Hex */
-.highlight .mi { color: #009999 } /* Literal.Number.Integer */
-.highlight .mo { color: #009999 } /* Literal.Number.Oct */
-.highlight .sb { color: #d14 } /* Literal.String.Backtick */
-.highlight .sc { color: #d14 } /* Literal.String.Char */
-.highlight .sd { color: #d14 } /* Literal.String.Doc */
-.highlight .s2 { color: #d14 } /* Literal.String.Double */
-.highlight .se { color: #d14 } /* Literal.String.Escape */
-.highlight .sh { color: #d14 } /* Literal.String.Heredoc */
-.highlight .si { color: #d14 } /* Literal.String.Interpol */
-.highlight .sx { color: #d14 } /* Literal.String.Other */
-.highlight .sr { color: #009926 } /* Literal.String.Regex */
-.highlight .s1 { color: #d14 } /* Literal.String.Single */
-.highlight .ss { color: #990073 } /* Literal.String.Symbol */
-.highlight .bp { color: #999999 } /* Name.Builtin.Pseudo */
-.highlight .vc { color: #008080 } /* Name.Variable.Class */
-.highlight .vg { color: #008080 } /* Name.Variable.Global */
-.highlight .vi { color: #008080 } /* Name.Variable.Instance */
-.highlight .il { color: #009999 } /* Literal.Number.Integer.Long */
+.highlight table td { padding: 5px; }
+.highlight table pre { margin: 0; }
+.highlight .cm {
+  color: #999988;
+  font-style: italic;
+}
+.highlight .cp {
+  color: #999999;
+  font-weight: bold;
+}
+.highlight .c1 {
+  color: #999988;
+  font-style: italic;
+}
+.highlight .cs {
+  color: #999999;
+  font-weight: bold;
+  font-style: italic;
+}
+.highlight .c, .highlight .ch, .highlight .cd, .highlight .cpf {
+  color: #999988;
+  font-style: italic;
+}
+.highlight .err {
+  color: #a61717;
+  background-color: #e3d2d2;
+}
+.highlight .gd {
+  color: #000000;
+  background-color: #ffdddd;
+}
+.highlight .ge {
+  color: #000000;
+  font-style: italic;
+}
+.highlight .gr {
+  color: #aa0000;
+}
+.highlight .gh {
+  color: #999999;
+}
+.highlight .gi {
+  color: #000000;
+  background-color: #ddffdd;
+}
+.highlight .go {
+  color: #888888;
+}
+.highlight .gp {
+  color: #555555;
+}
+.highlight .gs {
+  font-weight: bold;
+}
+.highlight .gu {
+  color: #aaaaaa;
+}
+.highlight .gt {
+  color: #aa0000;
+}
+.highlight .kc {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .kd {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .kn {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .kp {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .kr {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .kt {
+  color: #445588;
+  font-weight: bold;
+}
+.highlight .k, .highlight .kv {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .mf {
+  color: #009999;
+}
+.highlight .mh {
+  color: #009999;
+}
+.highlight .il {
+  color: #009999;
+}
+.highlight .mi {
+  color: #009999;
+}
+.highlight .mo {
+  color: #009999;
+}
+.highlight .m, .highlight .mb, .highlight .mx {
+  color: #009999;
+}
+.highlight .sa {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .sb {
+  color: #d14;
+}
+.highlight .sc {
+  color: #d14;
+}
+.highlight .sd {
+  color: #d14;
+}
+.highlight .s2 {
+  color: #d14;
+}
+.highlight .se {
+  color: #d14;
+}
+.highlight .sh {
+  color: #d14;
+}
+.highlight .si {
+  color: #d14;
+}
+.highlight .sx {
+  color: #d14;
+}
+.highlight .sr {
+  color: #009926;
+}
+.highlight .s1 {
+  color: #d14;
+}
+.highlight .ss {
+  color: #990073;
+}
+.highlight .s, .highlight .dl {
+  color: #d14;
+}
+.highlight .na {
+  color: #008080;
+}
+.highlight .bp {
+  color: #999999;
+}
+.highlight .nb {
+  color: #0086B3;
+}
+.highlight .nc {
+  color: #445588;
+  font-weight: bold;
+}
+.highlight .no {
+  color: #008080;
+}
+.highlight .nd {
+  color: #3c5d5d;
+  font-weight: bold;
+}
+.highlight .ni {
+  color: #800080;
+}
+.highlight .ne {
+  color: #990000;
+  font-weight: bold;
+}
+.highlight .nf, .highlight .fm {
+  color: #990000;
+  font-weight: bold;
+}
+.highlight .nl {
+  color: #990000;
+  font-weight: bold;
+}
+.highlight .nn {
+  color: #555555;
+}
+.highlight .nt {
+  color: #000080;
+}
+.highlight .vc {
+  color: #008080;
+}
+.highlight .vg {
+  color: #008080;
+}
+.highlight .vi {
+  color: #008080;
+}
+.highlight .nv, .highlight .vm {
+  color: #008080;
+}
+.highlight .ow {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .o {
+  color: #000000;
+  font-weight: bold;
+}
+.highlight .w {
+  color: #bbbbbb;
+}
+.highlight {
+  background-color: #f8f8f8;
+}
diff --git a/source/mail.md b/source/mail.md
index 0168fd1..8fcfbd5 100644
--- a/source/mail.md
+++ b/source/mail.md
@@ -14,7 +14,7 @@
 the message is mirrored to a lot of other archiving systems which we do not have under control. Therefore almost 100% 
 of all delete requests are denied. Please make sure you **do not send any potential sensitive information to the mailing list**,
 including passwords, server names, ips and so on.
-{:.alert .alert-block .alert-error}
+{:.alert .alert-info}
 
 ## Subscribing
 
@@ -72,7 +72,7 @@
 Please make sure that you are joining the list that is appropriate for the topic or product that you would like to discuss. 
 For example, please do not join the Struts mailing list and ask questions about Tomcat. Instead, you should join the Tomcat 
 User list and ask your questions there.
-{:.alert .alert-box .alert-error}
+{:.alert .alert-warning}
 
 ### Respect the mailing list type
 
@@ -99,7 +99,7 @@
 on the list for everyone to benefit from. Be careful of this as sometimes you may intend to reply to a message directly 
 to someone instead of the entire list.
 
-### Do not send HTML emails to the list.
+### Do not send HTML emails to the list.
 
 If you are using Outlook or Outlook Express or Eudora, chances are that you are sending HTML email by default. There is 
 usually a setting that will allow you to send "Plain Text" email.
diff --git a/source/updating-website.md b/source/updating-website.md
index 50429b5..c355485 100644
--- a/source/updating-website.md
+++ b/source/updating-website.md
@@ -40,3 +40,202 @@
 used to update the JavaDocs based on the latest release. If you have a proper privileges you can start the job
 and provide a Git tag of the latest release, eg. `STRUTS_2_5_22`. Based on the tag, Jenkins will generate a proper
 JavaDocs and deploy them directly into the website. You can verify them by using this [link](https://struts.staged.apache.org/maven/struts2-core/apidocs/index).
+
+## Example styles
+
+Below you will find an example styles and panels you can use when developing the webpage
+
+
+### Text alignment
+
+Text right
+{:.text-right}
+
+```xml
+Text right
+{:.text-right}
+```
+
+Text center
+{:.text-center}
+
+```
+Text center
+{:.text-center}
+```
+
+Text left
+{:.text-left}
+
+```
+Text left
+{:.text-left}
+```
+
+Text justify
+{:.text-justify}
+
+```
+Text justify
+{:.text-justify}
+```
+
+### Text color
+
+Text primary
+{:.text-primary}
+
+```
+Text primary
+{:.text-primary}
+```
+
+Text info
+{:.text-info}
+
+```
+Text info
+{:.text-info}
+```
+
+Text success
+{:.text-success}
+
+```
+Text success
+{:.text-success}
+```
+
+Text warning
+{:.text-warning}
+
+```
+Text warning
+{:.text-warning}
+```
+
+Text danger
+{:.text-danger}
+
+```
+Text danger
+{:.text-danger}
+```
+
+### Background
+
+Background primary
+{:.bg-primary}
+
+```
+Background primary
+{:.bg-primary}
+```
+
+Background info
+{:.bg-info}
+
+```
+Background info
+{:.bg-info}
+```
+
+Background success
+{:.bg-success}
+
+```
+Background success
+{:.bg-success}
+```
+
+Background warning
+{:.bg-warning}
+
+```
+Background warning
+{:.bg-warning}
+```
+
+Background danger
+{:.bg-danger}
+
+```
+Background danger
+{:.bg-danger}
+```
+
+### Label
+
+Label primary
+{:.label .label-primary}
+
+```
+Label primary
+{:.label .label-primary}
+```
+
+Label info
+{:.label .label-info}
+
+```
+Label info
+{:.label .label-info}
+```
+
+Label success
+{:.label .label-success}
+
+```
+Label success
+{:.label .label-success}
+```
+
+Label warning
+{:.label .label-warning}
+
+```
+Label warning
+{:.label .label-warning}
+```
+
+Label danger
+{:.label .label-danger}
+
+```
+Label danger
+{:.label .label-danger}
+```
+
+### Panel
+
+Info panel
+{:.alert .alert-info}
+
+```
+Info panel
+{:.alert alert-info}
+```
+
+Success panel
+{:.alert .alert-success}
+
+```
+Success panel
+{:.alert alert-success}
+```
+
+Warning panel
+{:.alert .alert-warning}
+
+```
+Warning panel
+{:.alert alert-warning}
+```
+
+Danger panel
+{:.alert .alert-danger}
+
+```
+Danger panel
+{:.alert alert-danger}
+```