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refactor: simplify HTML lessons to use semantic elements only

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- Remove presentational classes (.form-group, .required, .hint, .checkbox-group)
- Replace <span class="required">*</span> with plain * in label text
- Replace <div class="hint"> with semantic <small> element
- Simplify checkbox markup to use native label wrapping pattern
- Update previewBaseCSS to style semantic elements directly
- Add code quality standards to CLAUDE.md emphasizing WCAG compliance and native HTML
This commit is contained in:
Michael Czechowski
2025-12-24 01:55:47 +01:00
parent ac662ea11d
commit 43ac6da8df
5 changed files with 51 additions and 32 deletions
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12
lessons/de/21-html-forms-basic.json
View File

@@ -49,12 +49,12 @@
"id": "input-types",
"title": "Eingabetypen",
"description": "Verschiedene Eingabetypen bieten passende Tastaturen und Validierung:<br><br><kbd>type=\"text\"</kbd> - Allgemeiner Text<br><kbd>type=\"email\"</kbd> - E-Mail mit @-Validierung<br><kbd>type=\"password\"</kbd> - Versteckte Zeichen<br><kbd>type=\"number\"</kbd> - Numerische Tastatur<br><kbd>type=\"tel\"</kbd> - Telefon-Tastatur",
"task": "Erstelle ein Anmeldeformular mit zwei Feldern:<br>1. Ein E-Mail-Feld: <kbd>&lt;label for=\"email\"&gt;E-Mail:&lt;/label&gt;</kbd> und <kbd>&lt;input type=\"email\" id=\"email\"&gt;</kbd><br>2. Ein Passwort-Feld: <kbd>&lt;label for=\"password\"&gt;Passwort:&lt;/label&gt;</kbd> und <kbd>&lt;input type=\"password\" id=\"password\"&gt;</kbd><br><br>Optional kannst du jedes in ein <kbd>&lt;div class=\"form-group\"&gt;</kbd> für Abstände einschließen.",
"task": "Erstelle ein Anmeldeformular mit zwei Feldern:<br>1. Ein E-Mail-Feld: <kbd>&lt;label for=\"email\"&gt;E-Mail:&lt;/label&gt;</kbd> und <kbd>&lt;input type=\"email\" id=\"email\"&gt;</kbd><br>2. Ein Passwort-Feld: <kbd>&lt;label for=\"password\"&gt;Passwort:&lt;/label&gt;</kbd> und <kbd>&lt;input type=\"password\" id=\"password\"&gt;</kbd>",
"previewHTML": "",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 300px; } .form-group { margin-bottom: 15px; } label { display: block; margin-bottom: 5px; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; }",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 300px; } label { display: block; margin-top: 15px; margin-bottom: 5px; } label:first-child { margin-top: 0; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; }",
"sandboxCSS": "",
"initialCode": "<form>\n <!-- Füge E-Mail- und Passwort-Eingaben hinzu -->\n</form>",
"solution": "<form>\n <div class=\"form-group\">\n <label for=\"email\">E-Mail:</label>\n <input type=\"email\" id=\"email\" name=\"email\">\n </div>\n <div class=\"form-group\">\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\" name=\"password\">\n </div>\n</form>",
"solution": "<form>\n <label for=\"email\">E-Mail:</label>\n <input type=\"email\" id=\"email\" name=\"email\">\n \n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\" name=\"password\">\n</form>",
"previewContainer": "preview-area",
"validations": [
{
@@ -80,10 +80,10 @@
"description": "Formulare benötigen eine Möglichkeit zum Absenden. Verwende:<br><br><kbd>&lt;button type=\"submit\"&gt;</kbd> - Bevorzugt, flexibler Inhalt<br><kbd>&lt;input type=\"submit\"&gt;</kbd> - Einfacher Text-Button<br><br>Der Button-Text sollte handlungsorientiert sein (z.B. 'Anmelden', 'Registrieren', 'Senden').",
"task": "Füge dem Formular einen Absende-Button mit dem Text 'Anmelden' hinzu.",
"previewHTML": "",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 300px; } .form-group { margin-bottom: 15px; } label { display: block; margin-bottom: 5px; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } button { width: 100%; padding: 10px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; } button:hover { background: #1565c0; }",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 300px; } label { display: block; margin-top: 15px; margin-bottom: 5px; } label:first-child { margin-top: 0; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } button { width: 100%; margin-top: 20px; padding: 10px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; } button:hover { background: #1565c0; }",
"sandboxCSS": "",
"initialCode": "<form>\n <div class=\"form-group\">\n <label for=\"email\">E-Mail:</label>\n <input type=\"email\" id=\"email\">\n </div>\n <div class=\"form-group\">\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\">\n </div>\n <!-- Füge Absende-Button hinzu -->\n</form>",
"solution": "<form>\n <div class=\"form-group\">\n <label for=\"email\">E-Mail:</label>\n <input type=\"email\" id=\"email\">\n </div>\n <div class=\"form-group\">\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\">\n </div>\n <button type=\"submit\">Anmelden</button>\n</form>",
"initialCode": "<form>\n <label for=\"email\">E-Mail:</label>\n <input type=\"email\" id=\"email\">\n \n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\">\n \n <!-- Füge Absende-Button hinzu -->\n</form>",
"solution": "<form>\n <label for=\"email\">E-Mail:</label>\n <input type=\"email\" id=\"email\">\n \n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\">\n \n <button type=\"submit\">Anmelden</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{

20
lessons/de/22-html-forms-validation.json
View File

@@ -10,12 +10,12 @@
"id": "required-fields",
"title": "Pflichtfelder",
"description": "Das <kbd>required</kbd>-Attribut verhindert das Absenden des Formulars, wenn das Feld leer ist.<br><br>Füge es zu jeder Eingabe hinzu, die ausgefüllt werden muss:<br><kbd>&lt;input type=\"text\" required&gt;</kbd><br><br>Der Browser zeigt automatisch eine Validierungsmeldung an.",
"task": "Mache sowohl das Name- als auch das E-Mail-Feld zu Pflichtfeldern.",
"task": "Mache sowohl das Name- als auch das E-Mail-Feld zu Pflichtfeldern, indem du das <kbd>required</kbd>-Attribut hinzufügst.",
"previewHTML": "",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 350px; } .form-group { margin-bottom: 15px; } label { display: block; margin-bottom: 5px; } label .required { color: #d32f2f; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } input:invalid { border-color: #d32f2f; } button { padding: 10px 20px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; }",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 350px; } label { display: block; margin-top: 15px; margin-bottom: 5px; } label:first-of-type { margin-top: 0; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } input:invalid { border-color: #d32f2f; } button { margin-top: 20px; padding: 10px 20px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; }",
"sandboxCSS": "",
"initialCode": "<form>\n <div class=\"form-group\">\n <label for=\"name\">Name: <span class=\"required\">*</span></label>\n <input type=\"text\" id=\"name\" name=\"name\">\n </div>\n <div class=\"form-group\">\n <label for=\"email\">E-Mail: <span class=\"required\">*</span></label>\n <input type=\"email\" id=\"email\" name=\"email\">\n </div>\n <button type=\"submit\">Absenden</button>\n</form>",
"solution": "<form>\n <div class=\"form-group\">\n <label for=\"name\">Name: <span class=\"required\">*</span></label>\n <input type=\"text\" id=\"name\" name=\"name\" required>\n </div>\n <div class=\"form-group\">\n <label for=\"email\">E-Mail: <span class=\"required\">*</span></label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n </div>\n <button type=\"submit\">Absenden</button>\n</form>",
"initialCode": "<form>\n <label for=\"name\">Name: *</label>\n <input type=\"text\" id=\"name\" name=\"name\">\n \n <label for=\"email\">E-Mail: *</label>\n <input type=\"email\" id=\"email\" name=\"email\">\n \n <button type=\"submit\">Absenden</button>\n</form>",
"solution": "<form>\n <label for=\"name\">Name: *</label>\n <input type=\"text\" id=\"name\" name=\"name\" required>\n \n <label for=\"email\">E-Mail: *</label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n \n <button type=\"submit\">Absenden</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{
@@ -36,10 +36,10 @@
"description": "Kontrolliere, was Benutzer eingeben können:<br><br><kbd>minlength</kbd> / <kbd>maxlength</kbd> - Textlängenbegrenzung<br><kbd>min</kbd> / <kbd>max</kbd> - Zahlenbereich<br><kbd>pattern</kbd> - Regex-Musterabgleich<br><kbd>placeholder</kbd> - Hinweistext (kein Label!)",
"task": "Füge Validierung zur Passwort-Eingabe hinzu:<br>1. Füge <kbd>minlength=\"8\"</kbd> für die Mindestlänge hinzu<br>2. Füge <kbd>maxlength=\"20\"</kbd> für die Maximallänge hinzu<br>3. Füge <kbd>placeholder=\"Passwort eingeben\"</kbd> als Hinweis hinzu",
"previewHTML": "",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 350px; } .form-group { margin-bottom: 15px; } label { display: block; margin-bottom: 5px; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } input:invalid:not(:placeholder-shown) { border-color: #d32f2f; } .hint { font-size: 12px; color: #666; margin-top: 4px; } button { padding: 10px 20px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; }",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 350px; } label { display: block; margin-bottom: 5px; } input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } input:invalid:not(:placeholder-shown) { border-color: #d32f2f; } small { display: block; font-size: 12px; color: #666; margin-top: 4px; } button { margin-top: 20px; padding: 10px 20px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; }",
"sandboxCSS": "",
"initialCode": "<form>\n <div class=\"form-group\">\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required>\n <div class=\"hint\">Muss 8-20 Zeichen lang sein</div>\n </div>\n <button type=\"submit\">Konto erstellen</button>\n</form>",
"solution": "<form>\n <div class=\"form-group\">\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required minlength=\"8\" maxlength=\"20\" placeholder=\"Passwort eingeben\">\n <div class=\"hint\">Muss 8-20 Zeichen lang sein</div>\n </div>\n <button type=\"submit\">Konto erstellen</button>\n</form>",
"initialCode": "<form>\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required>\n <small>Muss 8-20 Zeichen lang sein</small>\n \n <button type=\"submit\">Konto erstellen</button>\n</form>",
"solution": "<form>\n <label for=\"password\">Passwort:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required minlength=\"8\" maxlength=\"20\" placeholder=\"Passwort eingeben\">\n <small>Muss 8-20 Zeichen lang sein</small>\n \n <button type=\"submit\">Konto erstellen</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{
@@ -65,10 +65,10 @@
"description": "Erstelle ein vollständiges Registrierungsformular mit allen Validierungskonzepten:<br><br>- Pflichtfelder mit * markiert<br>- E-Mail-Validierung (type=\"email\" verwenden)<br>- Passwort mit Längenbeschränkungen<br>- AGB-Checkbox (Pflichtfeld)<br>- Absende-Button",
"task": "Vervollständige das Registrierungsformular. Füge required-Attribute, passende Eingabetypen und Validierungsbeschränkungen hinzu.",
"previewHTML": "",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 400px; background: #f5f5f5; padding: 25px; border-radius: 8px; } h2 { margin-top: 0; margin-bottom: 20px; } .form-group { margin-bottom: 18px; } label { display: block; margin-bottom: 5px; font-weight: 500; } .required { color: #d32f2f; } input[type='text'], input[type='email'], input[type='password'] { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; font-size: 14px; } input:focus { outline: 2px solid #1976d2; border-color: transparent; } .checkbox-group { display: flex; align-items: flex-start; gap: 8px; } .checkbox-group input { width: auto; margin-top: 3px; } .checkbox-group label { margin: 0; font-weight: normal; } button { width: 100%; padding: 12px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; font-weight: 500; } button:hover { background: #1565c0; }",
"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } form { max-width: 400px; background: #f5f5f5; padding: 25px; border-radius: 8px; } h2 { margin-top: 0; margin-bottom: 20px; } label { display: block; margin-top: 15px; margin-bottom: 5px; font-weight: 500; } input[type='text'], input[type='email'], input[type='password'] { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; font-size: 14px; } input:focus { outline: 2px solid #1976d2; border-color: transparent; } input[type='checkbox'] { width: auto; margin-right: 8px; vertical-align: middle; } label:has(input[type='checkbox']) { display: flex; align-items: center; font-weight: normal; } button { width: 100%; margin-top: 20px; padding: 12px; background: #1976d2; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; font-weight: 500; } button:hover { background: #1565c0; }",
"sandboxCSS": "",
"initialCode": "<form>\n <h2>Konto erstellen</h2>\n \n <div class=\"form-group\">\n <label for=\"fullname\">Vollständiger Name <span class=\"required\">*</span></label>\n <input type=\"text\" id=\"fullname\" name=\"fullname\">\n </div>\n \n <div class=\"form-group\">\n <label for=\"email\">E-Mail <span class=\"required\">*</span></label>\n <input id=\"email\" name=\"email\">\n </div>\n \n <div class=\"form-group\">\n <label for=\"password\">Passwort <span class=\"required\">*</span></label>\n <input id=\"password\" name=\"password\">\n </div>\n \n <div class=\"form-group checkbox-group\">\n <input type=\"checkbox\" id=\"terms\" name=\"terms\">\n <label for=\"terms\">Ich stimme den Nutzungsbedingungen zu <span class=\"required\">*</span></label>\n </div>\n \n <button type=\"submit\">Registrieren</button>\n</form>",
"solution": "<form>\n <h2>Konto erstellen</h2>\n \n <div class=\"form-group\">\n <label for=\"fullname\">Vollständiger Name <span class=\"required\">*</span></label>\n <input type=\"text\" id=\"fullname\" name=\"fullname\" required>\n </div>\n \n <div class=\"form-group\">\n <label for=\"email\">E-Mail <span class=\"required\">*</span></label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n </div>\n \n <div class=\"form-group\">\n <label for=\"password\">Passwort <span class=\"required\">*</span></label>\n <input type=\"password\" id=\"password\" name=\"password\" required minlength=\"8\">\n </div>\n \n <div class=\"form-group checkbox-group\">\n <input type=\"checkbox\" id=\"terms\" name=\"terms\" required>\n <label for=\"terms\">Ich stimme den Nutzungsbedingungen zu <span class=\"required\">*</span></label>\n </div>\n \n <button type=\"submit\">Registrieren</button>\n</form>",
"initialCode": "<form>\n <h2>Konto erstellen</h2>\n \n <label for=\"fullname\">Vollständiger Name *</label>\n <input type=\"text\" id=\"fullname\" name=\"fullname\">\n \n <label for=\"email\">E-Mail *</label>\n <input id=\"email\" name=\"email\">\n \n <label for=\"password\">Passwort *</label>\n <input id=\"password\" name=\"password\">\n \n <label>\n <input type=\"checkbox\" id=\"terms\" name=\"terms\">\n Ich stimme den Nutzungsbedingungen zu *\n </label>\n \n <button type=\"submit\">Registrieren</button>\n</form>",
"solution": "<form>\n <h2>Konto erstellen</h2>\n \n <label for=\"fullname\">Vollständiger Name *</label>\n <input type=\"text\" id=\"fullname\" name=\"fullname\" required>\n \n <label for=\"email\">E-Mail *</label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n \n <label for=\"password\">Passwort *</label>\n <input type=\"password\" id=\"password\" name=\"password\" required minlength=\"8\">\n \n <label>\n <input type=\"checkbox\" id=\"terms\" name=\"terms\" required>\n Ich stimme den Nutzungsbedingungen zu *\n </label>\n \n <button type=\"submit\">Registrieren</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{