What is xhtml validation

Design Development Marketing 9. Decompress that file and then edit the file called lounge. Open the file in a browser. Any difference? Design Development Marketing Add an alt attribute to the drinks.

What is character encoding? It means that we are using a transitional DTD. The W3C created it to help those with huge websites that they needed to update. Those creating new websites should use a strict DTD. Now for some HTML 4. Do NOT nest block-level elements inside inline elements. A brisk iced tea with a bit of a kick Boil one cup of water in a pan, remove pan Then, run your page through the validator.

XHTML, however, requires that you also close empty elements. Write element names in lowercase. When the validator returns multiple errors, correct one error at a time, starting with the top error.

Then, re-validate. Total views On Slideshare 0. From embeds 0. Number of embeds 2. Downloads 8. Shares 0. Comments 0. Likes 0. You just clipped your first slide! They are like two sides of the same coin.

Validation improves usability and functionality because your users are less likely to run into errors when displayed on browsers compared to non-validated websites. Validation is fully compatible with a wide range of dynamic pages, scripting, active content, and multimedia presentations. Nowadays, HTML 5 is the norm. In addition, browsers ignore errors in HTML pages, and try to display the website even if it has some errors in the markup.

When compared to the core characteristics, HTML is case-sensitive, less expensive, and it uses simple text formatted code. XML, in full extensible markup language, a document formatting language used for some World Wide Web pages. All XML elements must have a closing tag.

XML tags are case sensitive. All XML elements must be properly nested. All XML documents must have a root element. Here's one error I got:. Note that the message tells me which line that the problem is at or near. The message also tries its best to describe the problem and guess at a cause. We can assume that the P element shown here doesn't close. If that particular P does close later in the document, we need to move it up above the opening UL, because a P element may not contain a UL element.