oont-contents/plugins/mailpoet/assets/dist/css/components-public/captcha.css

.mailpoet_captcha_form .mailpoet_icon_button{background:rgba(0,0,0,0);border:0;cursor:pointer}.mailpoet_captcha_form .mailpoet_icon_button img{height:20px;width:20px}form#registerform .g-recaptcha:not([data-size=invisible]){scale:.9;-webkit-transform-origin:0 0;transform-origin:0 0}form.woocommerce-form-register .g-recaptcha{padding-inline-start:3px}