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Error message and data-transition

     

toplisek

10:19 am on Mar 23, 2012 (gmt 0)

WebmasterWorld Senior Member 5+ Year Member



I'm using images with application for banner and code is like:
[PHP]

<img src="images/testing1.jpg" alt="" data-transition="slideinLeft" />


<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
[/PHP]
How to avoid this? Need help.

[validator.w3.org ] shows me an error and message:

You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).

This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.

How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the <embed> element to incorporate flash media in a Web page

Fotiman

1:34 pm on Mar 23, 2012 (gmt 0)

WebmasterWorld Senior Member fotiman is a WebmasterWorld Top Contributor of All Time 5+ Year Member Top Contributors Of The Month



data-* attributes are part of HTML5. Your DOCTYPE is specifying an XHTML document, not HTML5. Try changing your DOCTYPE to the HTML5 doctype:

<!DOCTYPE html>