In case anyone else comes across this old post …
1. Open the CSS style sheet for the Contact Form 7 (stylesheet.css).
2. Add a new style for a “submit” button …
.contactSubmit{
padding:8px 0 10px 0px;
color:#FF0000;
border:none;
width:85px;
height:30px;
text-align:center;
background-image:url(images/contact_submit.gif);
background-repeat:no-repeat;
}
3. Re-upload the stylesheet.css to your web server (( wp-content > plugins > contact-form-7 > stylesheet.css ))
Note* You’ll need to create a “button” background image and upload that to the images folder in the contact-form-7 plugins folder on your web server (see #3 above for the path to the images folder).
4. Go into the WordPress Admin for Contact Form 7
5. You can select the “Generate Tag” tab and select “Submit Button”
6. For the class (optional) set that to your new style “contactSubmit”
7. Copy and paste the code generated into your Contact Form 7 code panel…
<p>[submit id:submitbttn class:contactSubmit “submit”]</p>
You can view the effect in the contact section of my blog site (still in progress as of this response) … https://www.designrefresh.com/blog
Good luck.