Hi i want to create html page for salesforce community login. I wanted to provide login to community user through site.com. For which i want to create custom HTML page which will take username and password and after logging in it will show salesforce community. I have read communities implementation guide and currently I tried to do this functionality with the help of VF page and apex controller. But as i wanted to use this page in site.com and site.com doesn't support VF page so,instead of that i want to create HTML page which will do this kind of functionality(validation,authentication and login from that page).I checked various sites, but couldn't find the solution. So what should i do to solve my problem?