Srcset and sizes attributes
The srcset
and sizes
attributes on img
(or source
) elements allow authors to define various image resources and "hints" that assist a user agent to determine the most appropriate image source to display (e.g. high-resolution displays, small monitors, etc).
Spec | https://html.spec.whatwg.org/multipage/embedded-content.html#attr-img-srcset |
---|---|
Status | WHATWG Living Standard |
IE | Edge | Firefox | Chrome | Safari | Opera |
---|---|---|---|---|---|
98 | |||||
95 | 97 | ||||
94 | 96 | TP | |||
11 | 95 | 93 | 95 | 15 | 80 |
10 | 94 | 92 | 94 | 14.1 | 79 |
9 | 93 | 91 | 93 | 14 | 78 |
8 | 92 | 90 | 92 | 13.1 | 77 |
Show all | |||||
7 | 91 | 89 | 91 | 13 | 76 |
6 | 90 | 88 | 90 | 12.1 | 75 |
5.5 | 89 | 87 | 89 | 12 | 74 |
88 | 86 | 88 | 11.1 | 73 | |
87 | 85 | 87 | 11 | 72 | |
86 | 84 | 86 | 10.1 | 71 | |
85 | 83 | 85 | 10 | 70 | |
84 | 82 | 84 | 9.1 | 69 | |
83 | 81 | 83 | 9 | 68 | |
81 | 80 | 81 | 8 (2) | 67 | |
80 | 79 | 80 | 7.1 (2) | 66 | |
79 | 78 | 79 | 7 | 65 | |
18 | 77 | 78 | 6.1 | 64 | |
17 | 76 | 77 | 6 | 63 | |
16 | 75 | 76 | 5.1 | 62 | |
15 (3) | 74 | 75 | 5 | 60 | |
14 (3) | 73 | 74 | 4 | 58 | |
13 (3) | 72 | 73 | 3.2 | 57 | |
12 (2) | 71 | 72 | 3.1 | 56 | |
70 | 71 | 55 | |||
69 | 70 | 54 | |||
68 | 69 | 53 | |||
67 | 68 | 52 | |||
66 | 67 | 51 | |||
65 | 66 | 50 | |||
64 | 65 | 49 | |||
63 | 64 | 48 | |||
62 | 63 | 47 | |||
61 | 62 | 46 | |||
60 | 61 | 45 | |||
59 | 60 | 44 | |||
58 | 59 | 43 | |||
57 | 58 | 42 | |||
56 | 57 | 41 | |||
55 | 56 | 40 | |||
54 | 55 | 39 | |||
53 | 54 | 38 | |||
52 | 53 | 37 | |||
51 | 52 | 36 | |||
50 | 51 | 35 | |||
49 | 50 | 34 | |||
48 | 49 | 33 | |||
47 | 48 | 32 | |||
46 | 47 | 31 | |||
45 | 46 | 30 | |||
44 | 45 | 29 | |||
43 | 44 | 28 | |||
42 | 43 | 27 | |||
41 | 42 | 26 | |||
40 | 41 | 25 | |||
39 | 40 | 24 (2) | |||
38 | 39 | 23 (2) | |||
37 (1) | 38 | 22 (2) | |||
36 (1) | 37 (2) | 21 (2) | |||
35 (1) | 36 (2) | 20 | |||
34 (1) | 35 (2) | 19 | |||
33 (1) | 34 (2) | 18 | |||
32 (1) | 33 | 17 | |||
31 | 32 | 16 | |||
30 | 31 | 15 | |||
29 | 30 | 12.1 | |||
28 | 29 | 12 | |||
27 | 28 | 11.6 | |||
26 | 27 | 11.5 | |||
25 | 26 | 11.1 | |||
24 | 25 | 11 | |||
23 | 24 | 10.6 | |||
22 | 23 | 10.5 | |||
21 | 22 | 10.0-10.1 | |||
20 | 21 | 9.5-9.6 | |||
19 | 20 | 9 | |||
18 | 19 | ||||
17 | 18 | ||||
16 | 17 | ||||
15 | 16 | ||||
14 | 15 | ||||
13 | 14 | ||||
12 | 13 | ||||
11 | 12 | ||||
10 | 11 | ||||
9 | 10 | ||||
8 | 9 | ||||
7 | 8 | ||||
6 | 7 | ||||
5 | 6 | ||||
4 | 5 | ||||
3.6 | 4 | ||||
3.5 | |||||
3 | |||||
2 |
Safari on iOS | Opera Mini | Android Browser | Blackberry Browser | Opera Mobile | Android Chrome | Android Firefox | IE Mobile | Android UC Browser | Samsung Internet | QQ Browser | Baidu Browser | KaiOS Browser |
---|---|---|---|---|---|---|---|---|---|---|---|---|
15 | all | 94 | 10 | 64 | 94 | 92 | 11 | 12.12 | 15.0 | 10.4 | 7.12 | 2.5 |
14.5-14.8 | 4.4.3-4.4.4 | 7 | 12.1 | 10 | 14.0 | |||||||
14.0-14.4 | 4.4 | 12 | 13.0 | |||||||||
13.4-13.7 | 4.2-4.3 | 11.5 | 12.0 | |||||||||
Show all | ||||||||||||
13.3 | 4.1 | 11.1 | 11.1-11.2 | |||||||||
13.2 | 4 | 11 | 10.1 | |||||||||
13.0-13.1 | 3 | 10 | 9.2 | |||||||||
12.2-12.5 | 2.3 | 8.2 | ||||||||||
12.0-12.1 | 2.2 | 7.2-7.4 | ||||||||||
11.3-11.4 | 2.1 | 6.2-6.4 | ||||||||||
11.0-11.2 | 5.0-5.4 | |||||||||||
10.3 | 4 | |||||||||||
10.0-10.2 | ||||||||||||
9.3 | ||||||||||||
9.0-9.2 | ||||||||||||
8.1-8.4 (2) | ||||||||||||
8 (2) | ||||||||||||
7.0-7.1 | ||||||||||||
6.0-6.1 | ||||||||||||
5.0-5.1 | ||||||||||||
4.2-4.3 | ||||||||||||
4.0-4.1 | ||||||||||||
3.2 |
Notes
Can be enabled in Firefox by setting the about:config preference dom.image.srcset.enabled to true
Supports the subset of the syntax for resolution switching (using the
x
descriptor), but not the full syntax that can be used withsizes
(using thew
descriptor).Intermittently displays distorted images due to bug present (see known issues)
Bugs
Edge versions 13, 14 and 15 intermittently display distorted images as soon as they encounter a srcset attribute, seemingly dependent on caching and network timing. see bug
Resources
- Improved support for high-resolution displays with the srcset image attribute
- Blog post on srcset & sizes
- MDN: Responsive images
- MDN: element
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Licensed under the Creative Commons Attribution License v4.0.
https://caniuse.com/srcset