Change contact form opacity, text and minimized

Hi, I need to do some changes in my contact forms.

1) Change the opacity of the form in front of the map;
2) Start the form minimized;
3) Edit or translate “Name”, “Email”, “Your message…”, and “SEND” texts;
4) Edit or translate “Name”, “Email”, and “Your message…” texts of quick contact form;

If any of these items is possible, please let me know.

Thank you!