css - difference between Safari web inspector strike throughs -


in below picture, -webkit-box-shadow rule crossed out in red while -moz-box-shadow rule crossed out in black.

what each mean? (e.g. difference between red , black strike through?)

web inspector crosses out different rules in different ways

a red strike through indicates error, such invalid value or syntax error, , black strike through means rule ignored, because has been overridden.

in example, -webkit-box-shadow rule crossed out in red because of invalid value (rbga instead of rgba).


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