Top "W3c-validation" questions

You can use W3C validation services to check HTML documents, CSS stylesheets, Atom/RSS feeds, and more.

Validate HTML on local machine

I'm currently trying to learn HTML and Java EE Servlet programming. I have an application server running on my local …

html validation localhost w3c-validation
Stray end tag img

While validating markup through W3C validator service got this below error Stray end tag img Code is like below &…

html user-interface markup w3c-validation
Can I use label element with select?

Can I use label element with select? Most of the places I see label example with input elements only. What …

html label html-select w3c-validation
The element button must not appear as a descendant of the a element

Please help, I am getting error via http://validator.w3.org/ while validating my html5 template. I get the message "…

html anchor w3c-validation
"The frameborder attribute on the iframe element is obsolete. Use CSS instead."

I'm trying to validate my website with the W3C validator but it doesn't work. I have a YouTube iframe …

html iframe w3c-validation
HTML5 Validation error with select required attribute

Using the following code on select: <select name="province" id="province" required="required"> <optgroup label="Provinces"> &…

html-select w3c-validation
How do I fix "Error: A charset attribute on a meta element found after the first 512 bytes."

I am getting this error for my site in validation. Error: A charset attribute on a meta element found after …

html w3c-validation
No p element in scope but a p end tag seen.w3c validation

My HTML is as as below. I have opened all elements and closed them. Still when I check it on …

html w3c-validation html-validation
HTML5 Conformance Checker

I got the following warning using the W3C validator: Using experimental feature: HTML5 Conformance Checker What exactly does it …

html w3c-validation
Element style not allowed as child of element body in this context (<style scoped> not validating)

<!DOCTYPE html> ... <style scoped> /* css */ </style> The w3.org validator is giving me this …

html css w3c-validation