whats the default padding for a jquery button?

whats the default padding for a jquery button? tried to download and search the dev pack.开发者_JAVA技巧.. :( did not fint it :(

From the stylesheet:

.ui-button-text-only .ui-button-text {
  padding: .4em 1em;
}

As one of the commenters mentioned, it's very easy to find this out by using the firefox plugin firebug, or by using the web inspector in Safari/Chrome