I have a fba website in
SharePoint 2010 . I want to customize the
login page according to my website
theme and add contents to it as well as want to use that login functionality . What should be my approach to achieve this ?
Start from the following article
Find default FBA login page in
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\IDENTITYMODEL\FORMS
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\IDENTITYMODEL\FORMS
Now apply your custom branding. I have customized it for SharePoint 2013. I hope all the things are same. Just you have to take care of 14 instead of 15.