The Web Hypertext Applications Technology Working Group (WHATWG) — the organization which instigated HTML5 — has announced they are dropping version numbers. HTML5 is complete.

12 Common HTML Mistakes

• Missing or incorrect DOCTYPE. The DOCTYPE tells Web browsers what version of HTML your page is using.
• Missing Character Encoding.
• Unsupported tags or attributes.
• Improperly formatted HTML.
• Improper Tables.
• Missing ALT Text.
• Head content must be within the
• Missing or html> tags.

HTML5 tag abuse and XSS – HTML 5 has some interesting additional tags, these tags allows dynamic loading of audio and video. These tags have some interesting attributes like poster, onerror, formaction, oninput, etc. All these attributes allows JavaScript execution. These tags can be abused both for XSS and CSRF.

HTML5 is the latest version of HTML programming that allows better management of the web application or the website contents. While HTML doesn’t allow support for Video and Audio data in the programming language, HTML5 allows any kind of data to be incorporated into the program.

You have to know that HTML5 or CSS3 aren’t confirmed by W3C so i thinkt that it’s good to start with HTML/CSS and then study new features of HTML5/CSS3. HTML5/CSS3 are basically HTML/CSS with improvements and new features so if you are learning HTML5/CSS you will also be learning HTML/CSS as well.

HTML5 advantages: The following are the advantages of HTML5.

• Cleaner markup/ Improved code: HTML5 will enable web designers to use cleaner, neater code.
• Elegant forms: HTML5 enables designer to use fancier forms.
• Consistency:
• Supports rich media elements:
• Offline Application Cache:

Top 10 Most Important Features Of HTML5

• Cleaner and more Improved Code.
• Better Semantics.
• Enhanced Uniformity.
• Mutuality.
• Well-Designed Forms.
• Ensures Better Accessibility.
• Better Offline Browsing.
• Build Customized Web Applications.

Top 10 Reasons to Use HTML5 Right Now

1. 10 – Accessibility. HTML5 makes creating accessible sites easier for two main reasons: semantics and ARIA.
2. 9 – Video and Audio Support.
3. 8 – Doctype.
4. 7 – Cleaner Code.
5. 6 – Smarter Storage.
6. 5 – Better Interactions.
7. 4 – Game Development.
8. 3 – Legacy/Cross Browser Support.

List of the Advantages of HTML5

• HTML5 isn’t a proprietary code.
• It provides audio and video support.
• The coding with HTML5 is clear and consistent.
• There is more consistency with websites because of HTML5.
• There are more page layout elements available for your content.
• It offers search engine optimization benefits.

Pros and cons of HTML and CSS frameworks

• Pros. #1 – Low-barrier entry. #2 – Complete UI. #3 – Grid System. #4 – Maintenance. #5 – Stability.
• Cons. #1 – Learning. #2 – Unnecessary Code. #3 – Similarity. #4 – Additional Customization. #5 – Dependence. Summary.

Semantics tags have many benefits beyond pure efficiency and site performance in search engines. They help us build better site structures, and more importantly, they can seriously improve websites’ accessibility.

Advantages and disadvantages of CSS

• CSS saves a lot of time.
• It helps to make consistent and spontaneous changes.
• It improves the loading speed of the page.
• CSS has the ability to re-position.
• It has better device compatibility.

CSS works differently on different browsers. IE and Opera supports CSS as different logic. There might be cross-browser issues while using CSS. There are multiple levels which creates confusion for non-developers and beginners.

What are the disadvantages of CSS? CSS renders different dimensions with each browser. Programmers are required to consider and test all code across multiple browsers for compatibility before taking any website or mobile application live. This has been confusing for developers and browsers.

Disadvantages : It cannot produce dynamic output alone, since it’s a static language. Making of structure of HTML documents becomes tough to understood. Errors can be costly. HTML can create only static and plain pages so if we’d like dynamic pages then HTML isn’t useful.

HTML (HyperText Markup Language) is still the main building block for all websites. It serves as the foundation markup of any website implementation. As website creation tools have evolved, the process of creating a new website has become more accessible, however, these tools are still producing HTML as the end result.