Merge Chromium + Blink git repositories
[chromium-blink-merge.git] / tools / perf / page_sets / tough_layer_cases / opacity.html
blob61c675056abf00da2513206b3ff96fe77310f2cf
1 <!doctype html>
2 <html>
3 <head>
4 <title>Chrome 18 opacity test</title>
5 <style>
6 .ninety-nine{
7 opacity: 0.99;
9 </style>
10 <script>
11 function toggleOpacity() {
12 var pre = document.getElementById('label');
13 if (document.body.className == '') {
14 document.body.className='ninety-nine';
15 pre.innerHTML = 'opacity: 0.99';
16 } else {
17 document.body.className='';
18 pre.innerHTML = 'opacity: 1.0';
20 window.setTimeout("toggleOpacity();", 1000);
22 onload = toggleOpacity;
23 </script>
24 </head>
25 <body>
26 <div style="overflow: hidden">
27 <div style="-webkit-perspective: 10px">
28 Quite a lot of text: Opacity can be thought of as a postprocessing
29 operation. Conceptually, after the element (including its descendants)
30 is rendered into an RGBA offscreen image, the opacity setting specifies
31 how to blend the offscreen rendering into the current composite rendering.
32 The uniform opacity setting to be applied across an entire object. Any
33 values outside the range 0.0 (fully transparent) to 1.0 (fully opaque)
34 will be clamped to this range. If the object is a container element, then
35 the effect is as if the contents of the container element were blended
36 against the current background using a mask where the value of each pixel
37 of the mask is the opacity value
38 </div>
39 <pre id="label"></pre>
40 </div>
41 </body>
42 </html>