We will extend the example provided earlier and see what customization options are avaialble to us, if you want to play around with the size of the +1 button. You will find that it is very easy to customize this new sharing feature to suit to your needs. I will walkthrough some interesting sharing options for the +1 button now.
1) If you want a add a small +1 button (15 px) you just have to add one attribute size="small" to your code to make the button smaller. As an example;
<g:plusone size="small"></g:plusone>
2)If you want to add a medium sized sharing button (20 px), change the small in the code above to "medium". If you are after a tall sharing buttom (60 px), change the value of the size attribute to "tall".
3)If you do not want the count of number of shares on your +1 button , and need only the button, then you can use the attribute count="false" to disable the count. Find an example below that explains how to disable the count on the +1 button.
<g:plusone count="false"></g:plusone>
The screenshot below explains the possible sizes with / without count attributes. Actual link is here.