ChangeButtonStyles.css

/* Change button style*/
form.fluent_form_149 .ff-btn-submit {
    background-color: #000000; /* change button background color */
    color: #ffffff; /*change button font color*/
    border-radius: 10px; /*change button round corners*/
    
}

/*Change button hover style*/
form.fluent_form_149 .ff-btn-submit:hover {
    background-color: #ff0606; /*change button background color on hover*/
    color: #000000; /*change button font color on hover*/
}