This code is 15 px size google pluse Button !
<!-- Place this tag where you want the +1 button to render -->
<g:plusone size="small" annotation="inline" href="http://aspdotnetweb.blogspot.com/"></g:plusone>

<!-- Place this render call where appropriate -->
<script type="text/javascript">
  (function() {
    var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
    po.src = 'https://apis.google.com/js/plusone.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
  })();
</script>
This code copy and past your site !
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<!-- Place this tag where you want the +1 button to render -->
<g:plusone size="tall" annotation="inline" href="http://aspdotnetweb.blogspot.com/"></g:plusone>

<!-- Place this render call where appropriate -->
<script type="text/javascript">
  (function() {
    var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
    po.src = 'https://apis.google.com/js/plusone.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
  })();
</script>