CSS for Counter Bubble

A lot of WordPress themes, including twentythirteen, uses “border-box” box sizing for all elements. Ex. * {box-sizing: border-box}

This causes the counter bubble to be cut off since the width is set to use an exact pixel value. Maybe consider including this on the CSS so the buttons appear uniform on any box-sizing model.

.addthis_toolbox * {
     -webkit-box-sizing: content-box;
     -moz-box-sizing:    content-box;
     box-sizing:         content-box;
}

http://wordpress.org/plugins/addthis/