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Question 1

Manipulating CSS Styles (DOM)

Answer 1

document.querySelector(‘…’).style.property = ‘…‘

when we are manipulating, we always need to specify a string

Question 2

style.background-color OR style.backgroundColor ?

Answer 2

style.backgroundColor

camelCase notation

Question 3

style.width = ‘30’ OR style.width = 30 ?

Answer 3

style.width = ‘30‘