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Responsive image full markup
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Responsive image full markup example</title> | |
<!-- | |
Don't preload if <picture> is used | |
@https://web.dev/preload-responsive-images/#preload-and-lesspicturegreater | |
--> | |
<link rel="preload" href="image_landscape.jpg" imgsrcset="image_landscape.jpg 1x, image_landscape@2x.jpg 2x" as="image"> | |
</head> | |
<body> | |
<!-- | |
Responsive images full markup example with accessibility features, | |
optimized for performance. Code refer to a fake image.jpg with | |
size of 1024*768px for diffrent DPR | |
--> | |
<figure> | |
<picture> | |
<!-- | |
Pass the different versions for "art direction" | |
--> | |
<source srcset="image_portrait.jpg" | |
media="(max-width: 650px)" | |
width="650" height="866" | |
type="image/jpg"> | |
<source src="image_square.jpg" | |
media="(max-width: 1024px)" | |
width="1024" height="1024" | |
type="image/jpg"> | |
<!-- | |
Pass the PGN version | |
--> | |
<source srcset="image_portrait.png" | |
media="(max-width: 650px)" | |
width="650" height="866" | |
type="image/png"> | |
<source srcset="image_square.png" | |
media="(max-width: 720px)" | |
width="720" height="720" | |
type="image/png"> | |
<source srcset="image_landscape.png" | |
media="(min-width: 1025px)" | |
width="1024" height="1024" | |
type="image/png"> | |
<!-- | |
Pass the WEBP version | |
--> | |
<source srcset="image_portrait.webp" | |
media="(max-width: 650px)" | |
width="650" height="866" | |
type="image/webp"> | |
<source srcset="image_square.webp" | |
media="(max-width: 720px)" | |
width="720" height="720" | |
type="image/webp"> | |
<source srcset="image_landscape.webp" | |
media="(min-width: 1025px)" | |
width="1024" height="1024" | |
type="image/webp"> | |
<!-- | |
Fallback image | |
fetchpriority is not a standard yet, | |
avoid prioritizing to much image download | |
--> | |
<img src="assets/image_landscape.jpg" | |
width="1024" height="768 | |
srcset="image_landscape.jpg 1x, image_landscape@2x.jpg 2x" | |
sizes="100w" | |
loading="lazy" | |
decoding="async" | |
fetchpriority="low" | |
alt="Short image description" | |
aria-details="details"/> | |
<picture> | |
<figcaption> | |
<small>Image caption, useful for legends or <pre><figure></pre> content</small> | |
<figcaption> | |
</figure> | |
<p id="details">Long description of the image giving exaustive details on the content represented.</p> | |
</body> | |
</html> |
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