Method of displaying text or images before or after the given element's contents using the ::before and ::after pseudo-elements. All browsers with support also support the attr()
notation in the content
property.
Spec | https://www.w3.org/TR/CSS21/generate.html |
---|---|
Status | W3C Recommendation |
IE | Edge | Firefox | Chrome | Safari | Opera |
---|---|---|---|---|---|
108 | |||||
107 | 107 | TP | |||
106 | 106 | 16.1 | |||
11 | 105 | 105 | 105 | 16.0 | 91 |
10 | 104 | 104 | 104 | 15.6 | 90 |
9 | 103 | 103 | 103 | 15.5 | 89 |
8 (1) | 102 | 102 | 102 | 15.4 | 88 |
Show all | |||||
7 | 101 | 101 | 101 | 15.2-15.3 | 87 |
6 | 100 | 100 | 100 | 15.1 | 86 |
5.5 | 99 | 99 | 99 | 15 | 85 |
98 | 98 | 98 | 14.1 | 84 | |
97 | 97 | 97 | 14 | 83 | |
96 | 96 | 96 | 13.1 | 82 | |
95 | 95 | 95 | 13 | 81 | |
94 | 94 | 94 | 12.1 | 80 | |
93 | 93 | 93 | 12 | 79 | |
92 | 92 | 92 | 11.1 | 78 | |
91 | 91 | 91 | 11 | 77 | |
90 | 90 | 90 | 10.1 | 76 | |
89 | 89 | 89 | 10 | 75 | |
88 | 88 | 88 | 9.1 | 74 | |
87 | 87 | 87 | 9 | 73 | |
86 | 86 | 86 | 8 | 72 | |
85 | 85 | 85 | 7.1 | 71 | |
84 | 84 | 84 | 7 | 70 | |
83 | 83 | 83 | 6.1 | 69 | |
81 | 82 | 81 | 6 | 68 | |
80 | 81 | 80 | 5.1 | 67 | |
79 | 80 | 79 | 5 | 66 | |
18 | 79 | 78 | 4 | 65 | |
17 | 78 | 77 | 3.2 | 64 | |
16 | 77 | 76 | 3.1 | 63 | |
15 | 76 | 75 | 62 | ||
14 | 75 | 74 | 60 | ||
13 | 74 | 73 | 58 | ||
12 | 73 | 72 | 57 | ||
72 | 71 | 56 | |||
71 | 70 | 55 | |||
70 | 69 | 54 | |||
69 | 68 | 53 | |||
68 | 67 | 52 | |||
67 | 66 | 51 | |||
66 | 65 | 50 | |||
65 | 64 | 49 | |||
64 | 63 | 48 | |||
63 | 62 | 47 | |||
62 | 61 | 46 | |||
61 | 60 | 45 | |||
60 | 59 | 44 | |||
59 | 58 | 43 | |||
58 | 57 | 42 | |||
57 | 56 | 41 | |||
56 | 55 | 40 | |||
55 | 54 | 39 | |||
54 | 53 | 38 | |||
53 | 52 | 37 | |||
52 | 51 | 36 | |||
51 | 50 | 35 | |||
50 | 49 | 34 | |||
49 | 48 | 33 | |||
48 | 47 | 32 | |||
47 | 46 | 31 | |||
46 | 45 | 30 | |||
45 | 44 | 29 | |||
44 | 43 | 28 | |||
43 | 42 | 27 | |||
42 | 41 | 26 | |||
41 | 40 | 25 | |||
40 | 39 | 24 | |||
39 | 38 | 23 | |||
38 | 37 | 22 | |||
37 | 36 | 21 | |||
36 | 35 | 20 | |||
35 | 34 | 19 | |||
34 | 33 | 18 | |||
33 | 32 | 17 | |||
32 | 31 | 16 | |||
31 | 30 | 15 | |||
30 | 29 | 12.1 | |||
29 | 28 | 12 | |||
28 | 27 | 11.6 | |||
27 | 26 | 11.5 | |||
26 | 25 | 11.1 | |||
25 | 24 | 11 | |||
24 | 23 | 10.6 | |||
23 | 22 | 10.5 | |||
22 | 21 | 10.0-10.1 | |||
21 | 20 | 9.5-9.6 | |||
20 | 19 | 9 | |||
19 | 18 | ||||
18 | 17 | ||||
17 | 16 | ||||
16 | 15 | ||||
15 | 14 | ||||
14 | 13 | ||||
13 | 12 | ||||
12 | 11 | ||||
11 | 10 | ||||
10 | 9 | ||||
9 | 8 | ||||
8 | 7 | ||||
7 | 6 | ||||
6 | 5 | ||||
5 | 4 | ||||
4 | |||||
3.6 | |||||
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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
16.1 | ||||||||||||
16.0 | all | 105 | 10 | 64 | 105 | 104 | 11 | 13.4 | 18.0 | 13.1 | 13.18 | 2.5 |
15.6 | 4.4.3-4.4.4 | 7 | 12.1 | 10 | 17.0 | |||||||
15.5 | 4.4 | 12 | 16.0 | |||||||||
15.4 | 4.2-4.3 | 11.5 | 15.0 | |||||||||
Show all | ||||||||||||
15.2-15.3 | 4.1 | 11.1 | 14.0 | |||||||||
15.0-15.1 | 4 | 11 | 13.0 | |||||||||
14.5-14.8 | 3 | 10 | 12.0 | |||||||||
14.0-14.4 | 2.3 | 11.1-11.2 | ||||||||||
13.4-13.7 | 2.2 | 10.1 | ||||||||||
13.3 | 2.1 | 9.2 | ||||||||||
13.2 | 8.2 | |||||||||||
13.0-13.1 | 7.2-7.4 | |||||||||||
12.2-12.5 | 6.2-6.4 | |||||||||||
12.0-12.1 | 5.0-5.4 | |||||||||||
11.3-11.4 | 4 | |||||||||||
11.0-11.2 | ||||||||||||
10.3 | ||||||||||||
10.0-10.2 | ||||||||||||
9.3 | ||||||||||||
9.0-9.2 | ||||||||||||
8.1-8.4 | ||||||||||||
8 | ||||||||||||
7.0-7.1 | ||||||||||||
6.0-6.1 | ||||||||||||
5.0-5.1 | ||||||||||||
4.2-4.3 | ||||||||||||
4.0-4.1 | ||||||||||||
3.2 |
For content to appear in pseudo-elements, the content
property must be set (but may be an empty string).
IE8 only supports the single-colon CSS 2.1 syntax (i.e. :pseudo-class). It does not support the double-colon CSS3 syntax (i.e. ::pseudo-element).
Chrome supports CSS transitions on generated content as of v. 26. Safari v6 and below do not support transitions or animations on pseudo elements.
IE9, IE10, IE11 ignore CSS rem units in the line-height property. Bug report.
Firefox & Edge do not support :after
and :before
for input fields
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