Original image:
Note: Modern browsers require the border-style attribute to be solid for image borders, so I modified the CSS from the version in the book:
h2 {
text-align: center;
border-width: 10px;
border-style: solid;
border-image: url("frame.png") 25 repeat;
-webkit-border-image: url("frame.png") 25 repeat;
-moz-border-image: url("frame.png") 25 repeat;
}
Thanks to rap for noticing the issue and suggesting a fix.