HTML Form Validation Tutorial – Live Coding Practice with HTML5 Input Validation and CSS Feedback
HTML Form Validation Tutorial – Live Coding Practice with HTML5 Input Validation and CSS Feedback
Learn HTML5 form validation with real-world coding examples. In this HTML form validation tutorial, we build a signup form and demonstrate input validation using built-in HTML5 attributes like required, pattern, min, max, type, and more. Practice client-side form validation without JavaScript and use CSS to style valid and invalid input fields with pseudo-classes and Unicode icons.
💡 What You'll Learn:
How to validate forms in HTML using input constraints and type attributes
HTML5 validation attributes: required, pattern, min, max, maxlength, type=email, type=number, etc.
How to style form validation feedback with CSS
Using CSS pseudo-classes (:valid, :invalid, :required)
Using CSS pseudo-elements for icons and visual cues
Real-time validation styling with adjacent sibling selectors
Custom error messages and UX feedback for form inputs
Visualizing validation success/failure using Unicode tick/cross
Creating accessible, responsive signup forms using semantic HTML5 and Flexbox
👨💻 Live Coding Included: Practice along in VS Code as we walk through styling form fields, handling constraints, and ensuring smooth user feedback with pure HTML5 and CSS.
📌 Part 2 will cover JavaScript form validation techniques. Make sure to subscribe and check the playlist for the full validation tutorial series.
• Form Validation In JavaScript Tutorial — B...
Full playlist: • HTML Forms Playlist - Creation, Styling an...
00:00 Introduction
00:57 CSS Concepts used in the video for styling and error reporting
01:14 Introduction to CSS Pseudo Classes
01:55 Practice CSS pseudo classes in VS Code
04:15 Introduction to CSS Pseudo Elements
05:40 Practice CSS pseudo elements in VS Code
06:57 Adding unicode based status icons as pseudo elements in form
09:22 Introduction to Adjacent sibling selector/Next sibling selector/Adjacent Sibling Combinator
10:09 Practice CSS Styling using Adjacent Sibling Selector in VS Code
11:56 Introduction to Flex-Flow property of CSS Flexbox
12:38 Practice using Flex-Flow property of CSS Flexbox in VS Code
14:52 Creating a simple HTML signup form
15:58 Styling a simple HTML/CSS Signup form using CSS
19:20 Demo type based validation using email input field
19:50 Demo type based validation using file input field
20:34 Demo based validation using numeric input fields
21:30 Demo Min length and Max length attributes for text input controls
22:42 Demo Min and Max attributes numeric input controls - Min and Max
23:30 Demo constraint attributes for text input control - Pattern attribute
25:37 Demo Required attribute
27:45 Styling form for required attribute
29:45 Adding/positioning a 'required' flag above input field
34:44 Using required pseudo class to style required input fields
35:28 Using invalid pseudo class to style inputs with failed validation
36:03 Problem with required attribute and invalid pseudo class
36:47 Ways to avoid showing invalid styles on required fields when form loads
37:18 Adding/positioning Unicode based tick and cross icons to indicate validation result
42:20 Showing custom error message for specific input field
46:00 Highlighting issue with custom error message and importance of consistency
47:42 Limits of HTML5/CSS approach and importance of JavaScript based validation
48:45 Conclusion
#frontendwebdevelopment #formvalidation #html5validation #htmlform