CSS conflict with jetpack

“submit” & \”submit”\

I need to change jetpack submit button color with this

#subscribe-blog-blog_subscription-2 input[type=”submit”]

after saving in virtue theme custom css box is showing this

#subscribe-blog-blog_subscription-2 input[type=\”submit”\]

same as jetpack contact form

.contact-form input[type="submit"] {
/* Custom Rules here */
}

after saving

.contact-form input[type=\"submit"\] {
/* Custom Rules here */
}

I am using child theme

Thank you