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:default CSS pseudo-class

The :default pseudo-class matches checkboxes and radio buttons which are checked by default, <option>s with the selected attribute, and the default submit button (if any) of a form.

Spec https://drafts.csswg.org/selectors-4/#the-default-pseudo
Status Unofficial / Note
IE Edge Firefox Chrome Safari Opera
      73    
    65 72    
    64 71 TP  
11 18 63 70 12 56
10 17 62 69 11.1 55
9 16 61 68 11 54
8 15 60 67 10.1 53
Show all
7 14 59 66 10 (1) 52
6 13 58 65 9.1 (1) 51
5.5 12 57 64 9 (1) 50
    56 63 8 (1) 49
    55 62 7.1 (1) 48
    54 61 7 (1) 47
    53 60 6.1 (1) 46
    52 59 6 (1) 45
    51 58 5.1 (1) 44
    50 57 5 43
    49 56 4 42
    48 55 3.2 41
    47 54 3.1 40
    46 53   39
    45 52   38
    44 51   37 (1)
    43 50 (1)   36 (1)
    42 49 (1)   35 (1)
    41 48 (1)   34 (1)
    40 47 (1)   33 (1)
    39 46 (1)   32 (1)
    38 45 (1)   31 (1)
    37 44 (1)   30 (1)
    36 43 (1)   29 (1)
    35 42 (1)   28 (1)
    34 41 (1)   27 (1)
    33 40 (1)   26 (1)
    32 39 (1)   25 (1)
    31 38 (1)   24 (1)
    30 37 (1)   23 (1)
    29 36 (1)   22 (1)
    28 35 (1)   21 (1)
    27 34 (1)   20 (1)
    26 33 (1)   19 (1)
    25 32 (1)   18 (1)
    24 31 (1)   17 (1)
    23 30 (1)   16 (1)
    22 29 (1)   15 (1)
    21 28 (1)   12.1 (2)
    20 27 (1)   12 (2)
    19 26 (1)   11.6 (2)
    18 25 (1)   11.5
    17 24 (1)   11.1
    16 23 (1)   11
    15 22 (1)   10.6
    14 21 (1)   10.5
    13 20 (1)   10.0-10.1
    12 19 (1)   9.5-9.6
    11 18 (1)   9
    10 17 (1)    
    9 16 (1)    
    8 15 (1)    
    7 14    
    6 13    
    5 12    
    4 11    
    3.6 10    
    3.5 9    
    3 8    
    2 7    
      6    
      5    
      4    
iOS Safari Opera Mini Android Browser Blackberry Browser Opera Mobile Android Chrome Android Firefox IE Mobile Android UC Browser Samsung Internet QQ Browser Baidu Browser
12 all (2) 67 10 (1) 46 70 63 11 11.8 (1) 7.2 1.2 7.12
11.3-11.4   4.4.3-4.4.4 (1) 7 12.1 (2)     10   6.2    
11.0-11.2   4.4 (1)   12         5    
10.3   4.2-4.3 (1)   11.5         4 (1)    
Show all
10.0-10.2 (1)   4.1 (1)   11.1              
9.3 (1)   4 (1)   11              
9.0-9.2 (1)   3   10              
8.1-8.4 (1)   2.3                  
8 (1)   2.2                  
7.0-7.1 (1)   2.1                  
6.0-6.1                      
5.0-5.1                      
4.2-4.3                      
4.0-4.1                      
3.2                      

Notes

Whether <option selected> matches :default (per the spec) was not tested since <select>s and <option>s are generally not styleable, which makes it hard to formulate a test for this.

  1. Does not match <input type="checkbox" checked> or <input type="radio" checked>

  2. Does not match the default submit button of a form

Resources

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
http://caniuse.com/#feat=css-default-pseudo