This is a just in case you are having the same problem I was having and can't find the solution post.

I was trying to make a button smaller in width. I wanted it to be 65px and it was currently 80px wide.

I went into the /public_html/includes/template/YOUR TEMPLATE/css/stylesheet-css_buttons.css and tried to make the change. However, the change never stuck. I searched for hours trying to find out the solution. I could change the width in firebug but of course that is only temporary.

The solution is in /public_html/includes/functions/html_output.php at about Line #305 :

$min_width = 80; // this is the minimum button width, change the value as you like
All you need to do is change that minimum width from 80 to the width of your choice.

Sawhorse