products/Sources/formale Sprachen/C/Firefox/testing/web-platform/tests/png/apng/fdAT-8bit-gray.html
<!
DOCTYPE html >
<
html class=
"reftest-wait" >
<
meta charset=
"utf-8" >
<
title >PNG Third Edition: animated PNG, bit depth.
8 bit grayscale</
title >
<
link rel=
"author" title =
"Philip Taylor" href=
"mailto:excors@gmail.com" >
<
link rel=
"author" title =
"Chris Lilley" href=
"mailto:chris@w3.org" >
<
link rel=
"help" href=
"https://www.w3.org/TR/png-3/#apng-frame-based-animation " >
<
link rel=
"help" href=
"https://www.w3.org/TR/png-3/#fdAT-chunk " >
<
link rel=
"match" href=
"apng-graywhite-rectangle-ref.html" >
<
meta name=
"assert" content=
"It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image." >
<
script >
const el = document.querySelector(
".reftest-wait" );
setTimeout(() => {
el.classList.remove(
'reftest-wait' );
},
2100 );
</
script >
<
style >
.test {
width:
128 px;
height:
64 px;
background-color: white;
background-image:
linear-gradient(
45 deg, #ccc
25 %, transparent
25 %),
linear-gradient(-
45 deg, #ccc
25 %, transparent
25 %),
linear-gradient(
45 deg, transparent
75 %, #ccc
75 %),
linear-gradient(-
45 deg, transparent
75 %, #ccc
75 %);
background-size:
16 px
16 px;
background-position:
0 0 ,
0 8 px,
8 px -
8 px, -
8 px
0 px;
}
</
style >
<
body >
<p>Test passes if you see a gray rectangle, with a white rectangle in the middle, and no red.</p>
<
div class=
"test" ><
img src=
"support/034.png" alt=
"" ></
div >
</
body >
Messung V0.5 in Prozent C=93 H=100 G=96
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-04)
¤ *© Formatika GbR, Deutschland
