HTML and CSS Reference
Figure 15-3 The Cool Shoes & Socks web page viewed in Firefox 13.
Opera 11 and 12
When viewed in Opera 11 and 12, Cool Shoes & Socks doesn't provide quite the same experience as the other
browsers, due to Opera 11 and 12 not supporting @keyframes or 3D transforms, as shown in Figure 15-4. This is
not a problem, though; Opera still displays the web page perfectly well, and the code exists in the stylesheet for the
time when Opera does decide to support 3D transforms, making the page future proof.