public/code-crispies
2
1
Fork 0
Code Issues 7 Pull Requests Actions Activity

refactor: simplify HTML lessons to use semantic elements only

Browse Source 
- 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

🤖 Generated with [Claude Code](https://claude.ai/code)
This commit is contained in:
Michael Czechowski
2025-12-24 01:55:47 +01:00
parent 8236aad1bc
commit c4df288471
5 changed files with 51 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -10,12 +10,12 @@
"id": "required-fields",
"title": "Required Fields",
"description": "The <kbd>required</kbd> attribute prevents form submission if the field is empty.<br><br>Add it to any input that must be filled:<br><kbd>&lt;input type=\"text\" required&gt;</kbd><br><br>The browser shows a validation message automatically.",
"task": "Make both the name and email fields required.",
"task": "Make both the name and email fields required by adding the <kbd>required</kbd> attribute.",
"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\">Email: <span class=\"required\">*</span></label>\n <input type=\"email\" id=\"email\" name=\"email\">\n </div>\n <button type=\"submit\">Submit</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\">Email: <span class=\"required\">*</span></label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n </div>\n <button type=\"submit\">Submit</button>\n</form>",
"initialCode": "<form>\n <label for=\"name\">Name: *</label>\n <input type=\"text\" id=\"name\" name=\"name\">\n \n <label for=\"email\">Email: *</label>\n <input type=\"email\" id=\"email\" name=\"email\">\n \n <button type=\"submit\">Submit</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\">Email: *</label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n \n <button type=\"submit\">Submit</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{
@@ -36,10 +36,10 @@
"description": "Control what users can enter:<br><br><kbd>minlength</kbd> / <kbd>maxlength</kbd> - Text length limits<br><kbd>min</kbd> / <kbd>max</kbd> - Number range<br><kbd>pattern</kbd> - Regex pattern matching<br><kbd>placeholder</kbd> - Hint text (not a label!)",
"task": "Add validation to the password input:<br>1. Add <kbd>minlength=\"8\"</kbd> for minimum length<br>2. Add <kbd>maxlength=\"20\"</kbd> for maximum length<br>3. Add <kbd>placeholder=\"Enter password\"</kbd> as a hint",
"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\">Password:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required>\n <div class=\"hint\">Must be 8-20 characters</div>\n </div>\n <button type=\"submit\">Create Account</button>\n</form>",
"solution": "<form>\n <div class=\"form-group\">\n <label for=\"password\">Password:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required minlength=\"8\" maxlength=\"20\" placeholder=\"Enter password\">\n <div class=\"hint\">Must be 8-20 characters</div>\n </div>\n <button type=\"submit\">Create Account</button>\n</form>",
"initialCode": "<form>\n <label for=\"password\">Password:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required>\n <small>Must be 8-20 characters</small>\n \n <button type=\"submit\">Create Account</button>\n</form>",
"solution": "<form>\n <label for=\"password\">Password:</label>\n <input type=\"password\" id=\"password\" name=\"password\" required minlength=\"8\" maxlength=\"20\" placeholder=\"Enter password\">\n <small>Must be 8-20 characters</small>\n \n <button type=\"submit\">Create Account</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{
@@ -65,10 +65,10 @@
"description": "Build a complete registration form with all validation concepts:<br><br>- Required fields marked with *<br>- Email validation (use type=\"email\")<br>- Password with length constraints<br>- Terms checkbox (required)<br>- Submit button",
"task": "Complete the registration form. Add required attributes, proper input types, and validation constraints.",
"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>Create Account</h2>\n \n <div class=\"form-group\">\n <label for=\"fullname\">Full 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\">Email <span class=\"required\">*</span></label>\n <input id=\"email\" name=\"email\">\n </div>\n \n <div class=\"form-group\">\n <label for=\"password\">Password <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\">I agree to the Terms of Service <span class=\"required\">*</span></label>\n </div>\n \n <button type=\"submit\">Register</button>\n</form>",
"solution": "<form>\n <h2>Create Account</h2>\n \n <div class=\"form-group\">\n <label for=\"fullname\">Full 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\">Email <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\">Password <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\">I agree to the Terms of Service <span class=\"required\">*</span></label>\n </div>\n \n <button type=\"submit\">Register</button>\n</form>",
"initialCode": "<form>\n <h2>Create Account</h2>\n \n <label for=\"fullname\">Full Name *</label>\n <input type=\"text\" id=\"fullname\" name=\"fullname\">\n \n <label for=\"email\">Email *</label>\n <input id=\"email\" name=\"email\">\n \n <label for=\"password\">Password *</label>\n <input id=\"password\" name=\"password\">\n \n <label>\n <input type=\"checkbox\" id=\"terms\" name=\"terms\">\n I agree to the Terms of Service *\n </label>\n \n <button type=\"submit\">Register</button>\n</form>",
"solution": "<form>\n <h2>Create Account</h2>\n \n <label for=\"fullname\">Full Name *</label>\n <input type=\"text\" id=\"fullname\" name=\"fullname\" required>\n \n <label for=\"email\">Email *</label>\n <input type=\"email\" id=\"email\" name=\"email\" required>\n \n <label for=\"password\">Password *</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 I agree to the Terms of Service *\n </label>\n \n <button type=\"submit\">Register</button>\n</form>",
"previewContainer": "preview-area",
"validations": [
{