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a:visited { color: #8D20AE; }.button:hover,button:focus p:lang(ko) { background-color: #FFFF00; } :root { background-color: #FAEBD7; } nth-child vs nth-of-type Pseudo-Classes One of the most challenging aspects of pseudo-classes is understanding the difference between the :nth-child and :nth-of-type pseudo-classes.
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