diff --git a/README.md b/README.md
index 88f0630..7430cb6 100644
--- a/README.md
+++ b/README.md
@@ -44,13 +44,30 @@ Everything has its default style.
 
 CSS classes follow a naming scheme of `<object>_<description>`.
 
-* *Object* usually is the name of the HTML element. If it is not a elemtn directly it is the thing which receives the styling
-* *Description* is a name of the style e.g. what it does, how it looks
+- *Object* usually is the name of the HTML element. If it is not a elemtn directly it is the thing which receives the styling
+- *Description* is a name of the style e.g. what it does, how it looks
 
 ## Versioning
 
 This project uses [SemVer](http://semver.org/) for versioning. For the versions available, see the [tags on this repository](https://quelltext.interaktionsweise.de/interaktionsweise/hippie/tags).
 
+## Contribution
+
+For contribution please use the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/#summary) specification.  
+The commit *type* can include the following:
+
+- feat – A new feature is introduced with the changes
+- fix – A bug fix has occurred
+- chore – Changes that do not relate to a fix or feature and don't modify src or test files (for example updating dependencies)
+- refactor – Refactored code that neither fixes a bug nor adds a feature
+- docs – Updates to documentation such as a the README or other markdown files
+- style – Changes that do not affect the meaning of the code, likely related to code formatting such as white-space, missing semi-colons, and so on.
+- test – Including new or correcting previous tests
+- perf – Performance improvements
+- ci – Continuous integration related
+- build – Changes that affect the build system or external dependencies
+- revert – Reverts a previous commit
+
 ## Authors
 
 **Stephan Hagedorn** - *Initial work* - [Interaktionsweise](https://interaktionsweise.de)
diff --git a/TODO.md b/TODO.md
index 2f9122f..00cf677 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,8 +1,130 @@
-- remove gulp and legacy files
-- add dynamic content to robots.txt during build process
-- add dynamic content to sitemap.xml
-- add build process for normalize.css from github.com/necolas/normalize.css
-- add build process for bourbon from https://github.com/thoughtbot/bourbon
-- better README with more info for the content section
+# General
+
+- Remove gulp and legacy files
+- Add dynamic content to robots.txt during build process
+- Add dynamic content to sitemap.xml
+- Add build process for normalize.css from github.com/necolas/normalize.css
+- Add build process for bourbon from https://github.com/thoughtbot/bourbon
+- Better README with more info for the content section
 - Complete CHANGELOG
-- Automatic versioning for package.json and CHANGELOG
\ No newline at end of file
+- Automatic versioning for package.json and CHANGELOG
+
+# Content
+
+- Complete *Intro* with description for all basic elements, according to [HTML Standard - The elements of HTML](https://html.spec.whatwg.org/multipage/semantics.html#semantics)
+	- Documents metadata
+		- [ ] head
+	- Sections
+		- [x] body
+		- [x] article
+		- [x] section
+		- [x] nav
+		- [x] aside
+		- [x] h1-h6
+		- [x] hgroup
+		- [x] header
+		- [x] footer
+		- [x] address (put to grouping content)
+	- Grouping content
+		- [x] p
+		- [x] hr
+		- [x] pre
+		- [x] blockquote
+		- [x] ol
+		- [x] ul
+		- [ ] menu (new)
+		- [x] li
+		- [x] dl
+		- [x] dt
+		- [x] dd
+		- [x] figure
+		- [x] figcaption
+		- [x] main
+		- [ ] search (new)
+		- [x] div
+	- Text-level semantics
+		- [x] a
+		- [x] em
+		- [x] strong
+		- [x] small
+		- [x] s
+		- [x] cite
+		- [x] q
+		- [x] dfn
+		- [x] abbr
+		- [x] ruby
+		- [x] rb (deprecated)
+		- [x] rt
+		- [x] rtc (deprecated)
+		- [x] rp
+		- [x] data
+		- [x] time
+		- [x] code
+		- [x] var
+		- [x] samp
+		- [x] kbd
+		- [x] sub
+		- [x] sup
+		- [x] i
+		- [x] b
+		- [x] u
+		- [x] mark
+		- [x] bdi
+		- [x] bdo
+		- [x] span
+		- [x] br (mentioned in grouping content)
+		- [x] wbr
+	- Edits
+		- [x] ins
+		- [x] del
+	- Embedded content
+		- [x] picture
+		- [x] source
+		- [x] img
+		- [ ] iframe
+		- [ ] embed
+		- [ ] object
+		- [ ] param (deprecated)
+		- [ ] video
+		- [ ] audio
+		- [ ] track
+		- [ ] map
+		- [ ] area
+	- Tabular data
+		- [ ] table
+		- [ ] caption
+		- [ ] colgroup
+		- [ ] col
+		- [ ] tbody
+		- [ ] thead
+		- [ ] tfoot
+		- [ ] tr
+		- [ ] td
+		- [ ] th
+	- Forms
+		- [x] form
+		- [x] label
+		- [x] input
+		- [x] button
+		- [ ] select
+		- [ ] datalist
+		- [ ] optgroup
+		- [ ] option
+		- [ ] textarea
+		- [ ] output
+		- [ ] progress
+		- [ ] meter (new)
+		- [x] fieldset
+		- [x] legend
+	- Interactive elements
+		- [ ] details
+		- [ ] summary
+		- [ ] dialog
+	- Scripting
+		- [ ] script
+		- [ ] noscript
+		- [ ] template
+		- [ ] slot
+		- [ ] canvas
+- Check style for every basic element
+- Uniform spelling of classes and identifiers
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index f2ef3fb..3fabd9d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "hippie",
-  "version": "0.12.2",
+  "version": "0.13.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "hippie",
-      "version": "0.12.2",
+      "version": "0.13.1",
       "license": "MIT",
       "devDependencies": {
         "@11ty/eleventy": "^2.0.1",
@@ -134,9 +134,9 @@
       }
     },
     "node_modules/@babel/helper-string-parser": {
-      "version": "7.22.5",
-      "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.22.5.tgz",
-      "integrity": "sha512-mM4COjgZox8U+JcXQwPijIZLElkgEpO5rsERVDJTc2qfCDfERyob6k5WegS14SX18IIjv+XD+GrqNumY5JRCDw==",
+      "version": "7.24.1",
+      "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.24.1.tgz",
+      "integrity": "sha512-2ofRCjnnA9y+wk8b9IAREroeUP02KHp431N2mhKniy2yKIDKpbrHv9eXwm8cBeWQYcJmzv5qKCu65P47eCF7CQ==",
       "dev": true,
       "engines": {
         "node": ">=6.9.0"
@@ -152,9 +152,9 @@
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     },
     "node_modules/@babel/parser": {
-      "version": "7.23.0",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.23.0.tgz",
-      "integrity": "sha512-vvPKKdMemU85V9WE/l5wZEmImpCtLqbnTvqDS2U1fJ96KrxoW7KrXhNsNCblQlg8Ck4b85yxdTyelsMUgFUXiw==",
+      "version": "7.24.1",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.24.1.tgz",
+      "integrity": "sha512-Zo9c7N3xdOIQrNip7Lc9wvRPzlRtovHVE4lkz8WEDr7uYh/GMQhSiIgFxGIArRHYdJE5kxtZjAf8rT0xhdLCzg==",
       "dev": true,
       "bin": {
         "parser": "bin/babel-parser.js"
@@ -164,12 +164,12 @@
       }
     },
     "node_modules/@babel/types": {
-      "version": "7.23.0",
-      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.23.0.tgz",
-      "integrity": "sha512-0oIyUfKoI3mSqMvsxBdclDwxXKXAUA8v/apZbc+iSyARYou1o8ZGDxbUYyLFoW2arqS2jDGqJuZvv1d/io1axg==",
+      "version": "7.24.0",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.24.0.tgz",
+      "integrity": "sha512-+j7a5c253RfKh8iABBhywc8NSfP5LURe7Uh4qpsh6jc+aLJguvmIUBdjSdEMQv2bENrCR5MfRdjGo7vzS/ob7w==",
       "dev": true,
       "dependencies": {
-        "@babel/helper-string-parser": "^7.22.5",
+        "@babel/helper-string-parser": "^7.23.4",
         "@babel/helper-validator-identifier": "^7.22.20",
         "to-fast-properties": "^2.0.0"
       },
@@ -375,9 +375,9 @@
       "dev": true
     },
     "node_modules/async": {
-      "version": "3.2.4",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.2.4.tgz",
-      "integrity": "sha512-iAB+JbDEGXhyIUavoDl9WP/Jj106Kz9DEn1DPgYw5ruDn0e3Wgi3sKFm55sASdGBNOQB8F59d9qQ7deqrHA8wQ==",
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
+      "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg==",
       "dev": true
     },
     "node_modules/babel-walk": {
@@ -438,12 +438,15 @@
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     "node_modules/binary-extensions": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
-      "integrity": "sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
+      "integrity": "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw==",
       "dev": true,
       "engines": {
         "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/brace-expansion": {
@@ -469,14 +472,19 @@
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     },
     "node_modules/call-bind": {
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+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.7.tgz",
+      "integrity": "sha512-GHTSNSYICQ7scH7sZ+M2rFopRoLh8t2bLSW6BbgrtLsahOIB5iyAVJf9GjWK3cYTDaMj4XdBpM1cA6pIS0Kv2w==",
       "dev": true,
       "dependencies": {
+        "es-define-property": "^1.0.0",
+        "es-errors": "^1.3.0",
         "function-bind": "^1.1.2",
-        "get-intrinsic": "^1.2.1",
-        "set-function-length": "^1.1.1"
+        "get-intrinsic": "^1.2.4",
+        "set-function-length": "^1.2.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
       },
       "funding": {
         "url": "https://github.com/sponsors/ljharb"
@@ -508,16 +516,10 @@
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     "node_modules/chokidar": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.3.tgz",
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+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
+      "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==",
       "dev": true,
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://paulmillr.com/funding/"
-        }
-      ],
       "dependencies": {
         "anymatch": "~3.1.2",
         "braces": "~3.0.2",
@@ -530,6 +532,9 @@
       "engines": {
         "node": ">= 8.10.0"
       },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      },
       "optionalDependencies": {
         "fsevents": "~2.3.2"
       }
@@ -609,17 +614,20 @@
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+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/define-data-property/-/define-data-property-1.1.4.tgz",
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       "dependencies": {
-        "get-intrinsic": "^1.2.1",
-        "gopd": "^1.0.1",
-        "has-property-descriptors": "^1.0.0"
+        "es-define-property": "^1.0.0",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.0.1"
       },
       "engines": {
         "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
       }
     },
     "node_modules/dependency-graph": {
@@ -767,6 +775,27 @@
         "errno": "cli.js"
       }
     },
+    "node_modules/es-define-property": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.0.tgz",
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+      "dependencies": {
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+      },
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+      }
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+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
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+      "engines": {
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+    },
     "node_modules/escape-html": {
       "version": "1.0.3",
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@@ -811,9 +840,9 @@
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@@ -940,16 +969,20 @@
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         "function-bind": "^1.1.2",
         "has-proto": "^1.0.1",
         "has-symbols": "^1.0.3",
         "hasown": "^2.0.0"
       },
+      "engines": {
+        "node": ">= 0.4"
+      },
       "funding": {
         "url": "https://github.com/sponsors/ljharb"
       }
@@ -1056,21 +1089,21 @@
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@@ -1092,12 +1125,12 @@
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-        "has-symbols": "^1.0.2"
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@@ -1107,9 +1140,9 @@
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+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
+      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
       "dev": true,
       "dependencies": {
         "function-bind": "^1.1.2"
@@ -1147,9 +1180,9 @@
       }
     },
     "node_modules/immutable": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.3.4.tgz",
-      "integrity": "sha512-fsXeu4J4i6WNWSikpI88v/PcVflZz+6kMhUfIwc5SY+poQRPnaf5V7qds6SUyUN3cVxEzuCab7QIoLOQ+DQ1wA==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.3.5.tgz",
+      "integrity": "sha512-8eabxkth9gZatlwl5TBuJnCsoTADlL6ftEr7A4qgdaTsPyreilDSnUk57SO+jfKcNtxPa22U5KK6DSeAYhpBJw==",
       "dev": true
     },
     "node_modules/inflight": {
@@ -1402,9 +1435,9 @@
       }
     },
     "node_modules/liquidjs": {
-      "version": "10.9.3",
-      "resolved": "https://registry.npmjs.org/liquidjs/-/liquidjs-10.9.3.tgz",
-      "integrity": "sha512-vG8fLPSBtf0C6FJg0DwzxwWF0sPE+wIRrrGsNoe0DP3Pg4HOPqycGDT14V4UfyskUXsum7DkhUuZQ9tBRjbX+g==",
+      "version": "10.10.2",
+      "resolved": "https://registry.npmjs.org/liquidjs/-/liquidjs-10.10.2.tgz",
+      "integrity": "sha512-UcuTUexKg/8CmX6I5KNghk13pl3c8Rqhm+WSWqrc17pQP9LjpYPpOLDKG9OMBeHDBQ70yyn/GOqyZ/EKJ4z5yg==",
       "dev": true,
       "dependencies": {
         "commander": "^10.0.0"
@@ -1446,9 +1479,9 @@
       }
     },
     "node_modules/luxon": {
-      "version": "3.4.3",
-      "resolved": "https://registry.npmjs.org/luxon/-/luxon-3.4.3.tgz",
-      "integrity": "sha512-tFWBiv3h7z+T/tDaoxA8rqTxy1CHV6gHS//QdaH4pulbq/JuBSGgQspQQqcgnwdAx6pNI7cmvz5Sv/addzHmUg==",
+      "version": "3.4.4",
+      "resolved": "https://registry.npmjs.org/luxon/-/luxon-3.4.4.tgz",
+      "integrity": "sha512-zobTr7akeGHnv7eBOXcRgMeCP6+uyYsczwmeRCauvpvaAltgNyTbLH/+VaEAPUeWBT+1GuNmz4wC/6jtQzbbVA==",
       "dev": true,
       "engines": {
         "node": ">=12"
@@ -1613,9 +1646,9 @@
       "dev": true
     },
     "node_modules/morphdom": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/morphdom/-/morphdom-2.7.1.tgz",
-      "integrity": "sha512-LwrrjplMolniWtOGluKF1EHZ0y78Fa4sq7f/MXCydyNkDof+POf+ruCn+k08l7H7b/JISfRo8Zd0HazuqySY9w==",
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/morphdom/-/morphdom-2.7.2.tgz",
+      "integrity": "sha512-Dqb/lHFyTi7SZpY0a5R4I/0Edo+iPMbaUexsHHsLAByyixCDiLHPHyVoKVmrpL0THcT7V9Cgev9y21TQYq6wQg==",
       "dev": true
     },
     "node_modules/ms": {
@@ -2118,9 +2151,9 @@
       }
     },
     "node_modules/sass": {
-      "version": "1.69.4",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.69.4.tgz",
-      "integrity": "sha512-+qEreVhqAy8o++aQfCJwp0sklr2xyEzkm9Pp/Igu9wNPoe7EZEQ8X/MBvvXggI2ql607cxKg/RKOwDj6pp2XDA==",
+      "version": "1.72.0",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.72.0.tgz",
+      "integrity": "sha512-Gpczt3WA56Ly0Mn8Sl21Vj94s1axi9hDIzDFn9Ph9x3C3p4nNyvsqJoQyVXKou6cBlfFWEgRW4rT8Tb4i3XnVA==",
       "dev": true,
       "dependencies": {
         "chokidar": ">=3.0.0 <4.0.0",
@@ -2148,9 +2181,9 @@
       }
     },
     "node_modules/semver": {
-      "version": "7.5.4",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
-      "integrity": "sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==",
+      "version": "7.6.0",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.0.tgz",
+      "integrity": "sha512-EnwXhrlwXMk9gKu5/flx5sv/an57AkRplG3hTK68W7FRDN+k+OWBj65M7719OkA82XLBxrcX0KSHj+X5COhOVg==",
       "dev": true,
       "dependencies": {
         "lru-cache": "^6.0.0"
@@ -2169,15 +2202,17 @@
       "dev": true
     },
     "node_modules/set-function-length": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/set-function-length/-/set-function-length-1.1.1.tgz",
-      "integrity": "sha512-VoaqjbBJKiWtg4yRcKBQ7g7wnGnLV3M8oLvVWwOk2PdYY6PEFegR1vezXR0tw6fZGF9csVakIRjrJiy2veSBFQ==",
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/set-function-length/-/set-function-length-1.2.2.tgz",
+      "integrity": "sha512-pgRc4hJ4/sNjWCSS9AmnS40x3bNMDTknHgL5UaMBTMyJnU90EgWh1Rz+MC9eFu4BuN/UwZjKQuY/1v3rM7HMfg==",
       "dev": true,
       "dependencies": {
-        "define-data-property": "^1.1.1",
-        "get-intrinsic": "^1.2.1",
+        "define-data-property": "^1.1.4",
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2",
+        "get-intrinsic": "^1.2.4",
         "gopd": "^1.0.1",
-        "has-property-descriptors": "^1.0.0"
+        "has-property-descriptors": "^1.0.2"
       },
       "engines": {
         "node": ">= 0.4"
@@ -2232,9 +2267,9 @@
       }
     },
     "node_modules/source-map-js": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
-      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.0.tgz",
+      "integrity": "sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==",
       "dev": true,
       "engines": {
         "node": ">=0.10.0"
@@ -2407,9 +2442,9 @@
       "dev": true
     },
     "node_modules/ws": {
-      "version": "8.14.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.14.2.tgz",
-      "integrity": "sha512-wEBG1ftX4jcglPxgFCMJmZ2PLtSbJ2Peg6TmpJFTbe9GZYOQCDPdMYu/Tm0/bGZkw8paZnJY45J4K2PZrLYq8g==",
+      "version": "8.16.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.16.0.tgz",
+      "integrity": "sha512-HS0c//TP7Ina87TfiPUz1rQzMhHrl/SG2guqRcTOIUYD2q8uhUdNHZYJUaQ8aTGPzCh+c6oawMKW35nFl1dxyQ==",
       "dev": true,
       "engines": {
         "node": ">=10.0.0"
diff --git a/source/screens/demo/intro.njk b/source/screens/demo/intro.njk
index 67d7c86..61c5f7d 100644
--- a/source/screens/demo/intro.njk
+++ b/source/screens/demo/intro.njk
@@ -13,7 +13,7 @@
   {% include "hippie/partials/_body_nav.njk" %}
 
   <div id="begin" class="demo__intro">
-    Dies ist einfach nur Text.<br>Weniger wäre Nichts, denn dieser Text ist nicht durch ein spezifisches Element umschlossen.<br>Dies ist normalerweise nicht vorgesehen und wird hier nur zur Einführung und Anschauung verwendet.<br><br>
+    Dies ist einfach nur Text.<br>Weniger wäre Nichts, denn dieser Text ist nicht durch ein spezifisches Element umschlossen.<br>Das ist normalerweise nicht vorgesehen und wird hier nur zur Einführung und Anschauung verwendet.<br><br>
     <article>
       <p>Es wirken nur die Eigenschaften des
         <code>&lt;body&gt;</code>
@@ -66,8 +66,10 @@
       <h3>Überschrift 3 ist in Großbuchstaben gesetzt</h3>
       <h4>Überschrift 4 verwendet normale Buchstaben und gleicht ansonsten Überschrift 3</h4>
       <h5>Überschrift 5 ist Überschrift 5</h5>
-      <h6>Überschrift 6</h6>
-      <p>Schließlich eine Überschrift in der Größe des Fließtextes. Allerdings in fett.</p>
+      <hgroup>
+        <h6>Überschrift 6</h6>
+        <p>Überschriften können mit dem Element <code>&lt;hgroup&gt;</code> mit Absätzen gruppiert werden um beispielsweise Untertitel abzubilden.</p>
+      </hgroup>
     </article>
     <article>
       <h1 id="grouping">Gruppierung</h1>
@@ -493,7 +495,7 @@
       </aside>
       <p>Der Inhalt wird dann mit
         <code>&lt;ins&gt;</code>
-        ausgezeichnet. Wird Text entfernt, kommt das
+        ausgezeichnet. Wird Text entfernt, kommt 
         <code>&lt;del&gt;</code>
         zum Einsatz.</p>
       <h6>Zu Tun</h6>