How do i change input text of my form?

Dear sirs, i'm driving mad trying to change my input text (for blank fields, where user should insert data) from dark grey to white.

Attach please find an image.

I've been through the code and can't find where it is, and on Designer mode, it won't accept the white!

Also need to change the Font to CABIN 9PX. Can't find where.

Any help would be really appreciated.

Best regards,

Please try to put this CSS in your Custom CSS field:

#input_4 {

    color : white;

}

#input_5 {

    color : white;

}

#input_6 {

    color : white;

}

#input_7 {

    color : white;

}

#input_8 {

    color : white;

}

Please let me know how that worked for you!

Thanks.