Though we can create a Blogger contact form widget in HTML and CSS , some sort of php or server side scripting was required to make them working . Here is a website called kontactr providing free contact forms for Blogger ,Wordpress and other sites .
sign up here .

After signing up , copy the code in the box “Embed Widget AJAX” . Crate a new post or search for any draft posts in your Edit Posts section. Title your post as contact me , paste the code and publish your post . Use this post link for the contact me button in your homepage . Emails will be directly delivered to the specified address during registration .