I actually didn’t!
This is the code:
div.wpforms-container-full .wpforms-form input[type=submit],
div.wpforms-container-full .wpforms-form button[type=submit] {
background-color: #eee; /* Grey background */
border: 1px solid #ddd; /* Dark grey border */
color: #333; /* Black text color */
font-size: 1em; /* Size of text */
padding: 10px 15px; /* Distance between text and border */
}
I found this online here: https://wpforms.com/docs/how-to-customize-the-submit-button/
I added it just as they said but its not changing the button?