Bojan - WPMU DEV Support on "Contact Form 7 Customization ?"

Hey there kuhashmi,

This can be done by adding some custom CSS. The easiest way to do that, if your theme doesn't already have custom CSS tab, would be to add it in your site using the following plugin

http://wordpress.org/plugins/simple-custom-css

Once the plugin is installed and activated you can add this code to Appearance >> Custom CSS:

input.wpcf7-form-control.wpcf7-submit {
box-shadow: none;
}

This should remove the box shadow on that button.

Best regards,
Bojan