CSS Generated content for pseudo-elements

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.

IE Edge Firefox Chrome Safari Opera iOS Safari Opera Mini Android Browser Blackberry Browser Opera Mobile Chrome for Android Firefox for Android IE Mobile UC Browser for Android Samsung Internet QQ Browser Baidu Browser
49
56 9.3 4.4
14 52 57 10 10.0-10.2 4.4.3-4.4.4 4
11 15 53 58 10.1 44 10.3 all 56 10 37 57 52 11 11.4 5 1.2 7.12
54 59 TP 45
55 60 46
56 61

Notes

For content to appear in pseudo-elements, the content property must be set (but may be an empty string).

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