style on two different forms

Hello I want to make a different background for a form that I have on my home page and another one I have on my contact page, is there a way of having one with a different background color than the other… I wrote this on the sytles:
.wpcf7 {
background-color: #F0F0F0;
border: 3px solid #666666;
}

And it works, but it applies on all of my forms, how can I do choose a different background color for each form?

Thanks!

Carlos

https://www.ads-software.com/plugins/contact-form-7-style/