Question

how to customize send feedback form?

Comments

You mean the css part?

Answer 1

Is this what you want?

http://question2answer.org/qa/22377/change-text-on-feedback-page?show=22377#q22377

Answer 2

The CSS can be customised in your theme's CSS.

If you want to change the text, you can use the translation feature. Check out the last section here: http://docs.question2answer.org/translate/

Override stuff from qa-lang-misc.php

If you want to make more extensive changes such as extra fields you should instead make a page plugin with exactly the kind of content you want. See http://docs.question2answer.org/plugins/modules-page/