What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.

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    How to align the lightbox in the center?

    Asked by ivankalinichev on September 21, 2011 at 05:34 PM

    I do not know what the problem is, I just copied the code from your site. On one siteall works well, but this does not work correctly.


    Page URL:

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    JotForm Support

    Answered by NeilVicente on September 22, 2011 at 05:33 AM


    Please add this doctype definition to your site's source code:

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    Kindly send us an update if it helps or not. Thanks!

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    Answered by ivankalinichev on September 22, 2011 at 10:40 AM

    Yes! That helped.
    Thank you very much.