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Add multiple classes to an Element using JavaScript | bobbyhadz
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![Javascript Siblings - Add Remove Class - Set Active DIV [ With Source Code ] - YouTube](https://i.ytimg.com/vi/RBB2N341tr0/maxresdefault.jpg "Javascript Siblings - Add Remove Class - Set Active DIV [ With Source Code ] - YouTube")
Javascript Siblings - Add Remove Class - Set Active DIV [ With Source Code ] - YouTube
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addClass() method in Jquery | Dotnet Helpers
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JavaScript Add Class (in 3 Ways)
javascript - jQuery addClass not overwriting - Stack Overflow
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JavaScript Add Class (in 3 Ways)
