On a facebook 'page', there is a nice, compact 'Like' button:

But, no matter how I tweak the options on the like button page, I cannot get anything like this. It always has additional stuff that I just don't want. How can I get an equivalent?
Bonus points if there is a mechanism to use my own HTML, in whatever way is appropriate for me, but still utilise the same functionality (i.e. click the button to 'like' the facebook 'page', stay on original site if logged into facebook, etc.)