HTML Guide
And end tag has been found that does not match the current open element. Check the context to fix the start and end tags.
Related W3C validator issues
A <p> element cannot be placed inside a <noscript> tag within the <head> section.
According to the HTML specification, the <head> element must only contain metadata, such as <title>, <meta>, <link>, <script>, and <style>. The <noscript> element is allowed in <head>, but it must only contain elements that are valid in head, not flow content like <p>. The <p> (paragraph) tag is flow content meant for the <body>. For fallback content in <head>, only metadata elements are allowed.
Incorrect example:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Example</title>
<noscript>
<p>JavaScript is disabled.</p>
</noscript>
</head>
<body>
</body>
</html>Correct approaches:
-
Remove the <p> from <noscript> in <head>:
- If you must include fallback styles or links in case JavaScript is disabled, use only metadata tags.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Example</title>
<noscript>
<link rel="stylesheet" href="no-js.css">
</noscript>
</head>
<body>
</body>
</html>-
Place textual fallback content in the <body> instead:
- Moving the <noscript> block with flow content (such as <p>) to the body ensures validity.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Example</title>
</head>
<body>
<noscript>
<p>JavaScript is disabled.</p>
</noscript>
</body>
</html>Remember: Do not use <p> (or any flow content) in <noscript> inside <head>. Use such content only in the body.
An </a> end tag has been found to violate nesting rules. <a> tags can’t include other <a> tags inside. Most probable cause is an unclosed <a> tag, like in this example:
<a href="one.html">Page 1
<a href="two.html">Page 2</a>An end tag </code> has been found violating nesting rules. Check other errors in the same document related to the <code> element, and fix the unallowed nested elements.
A closing </body> tag has been found, but there are unclosed elements before it. For example this has an unclosed <section> element:
<body>
<section>
</body>End tags in HTML must not have any attributes.
According to the HTML specification, only start tags (also called opening tags) may contain attributes, while end tags must appear as a plain </tagname> with nothing else.
For example, this is invalid and will trigger the error:
<p>Welcome to the site.</p class="welcome">Correct code removes the attribute from the end tag:
<p>Welcome to the site.</p>If you need the element to have an attribute, only include it in the start tag:
<p class="welcome">Welcome to the site.</p>An end tag has been found after the closing </body> tag, which breaks the expected HTML document structure.
Check out the document structure, a basic example follows:
<!DOCTYPE html>
<html lang="">
<head>
<title>Test</title>
</head>
<body>
<p></p>
</body>
</html>An <a> tag can’t include other <a> tags inside. Most probable cause is an unclosed <a> tag, like in this example:
<a href="one.html">Page 1
<a href="two.html">Page 2</a>A <button> tag can’t include other <button> tags inside. Most probable cause is an unclosed <button> tag, like in this example:
<button>Submit
<button>Cancel</button>HTML documents are expected to start with a first line containing the Document Type Declaration, that defines the HTML version used. Since HTML5, it’s just <!DOCTYPE html>, which must appear before the start <html> tag.
Here’s an example of a minimal HTML5 document:
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
</head>
<body>
<p></p>
</body>
</html>An end tag for X has been found that does not correspond to a previous open tag. This usually happens when you close the same tag twice, for example:
<ul>
<li>item</li>
</ul>
</ul>