Are nested span tags OK in XHTML?

HtmlXhtml

Html Problem Overview

Will this validate in XHTML?

<span>hello<span>world</span></span>

Html Solutions

Solution 1 - Html

Yes it will. You can help yourself by using the w3's validator direct input option:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
      <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
        <head>
          <title>Title</title>
        </head>

        <body>
           <p>
               <span>Test<span>Nest span</span></span>
           </p>
        </body>
      </html>

Solution 2 - Html

Absolutely.

Here's the definition from an XHTML-strict DOCTYPE for a span element.

<!ELEMENT span %Inline;> <!-- generic language/style container -->
<!ATTLIST span
  %attrs;
  >

The "%Inline" part tells me that it can have child nodes from the "% Inline;" entities element list.

The span element is included in the list of elements classed as "% Inline", that combined with span allowing "%Inline" child elements tells me that span is a valid child of span.

Solution 3 - Html

SPAN can contain only inline elements, such as SPAN etc.

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionrickView Question on Stackoverflow
Solution 1 - HtmlRichardODView Answer on Stackoverflow
Solution 2 - HtmljoebertView Answer on Stackoverflow
Solution 3 - HtmldusoftView Answer on Stackoverflow