How to place "*indicates required field" at the bottom of the contact field

Site URL: https://sawfish-lemon-adeb.squarespace.com/

My client has come back asking if it is possible to include "*includes required field" in the contact form at the bottom so it appears in the same spot across all that have the form. Is this possible? I made a make shift one on the about page, but this method doesn't work on the homepage, contact page, or various service pages.

https://sawfish-lemon-adeb.squarespace.com/

PW: 38b9HJ8j

Thank you.

I used the same method

#block-yui_3_17_2_1_1604959675833_17676 {
    padding-top: 0 !important;
    margin: 17px;
    margin-top: -25px;
    background: #134213 !important;
    border-radius: 5px !important;
    color: #fff;
    font-family: 'Work Sans',sans-serif !important;
}

Thank you. I guess you can't add custom text to a contact from. 

This was very helpful.