1/*The querySelector() method returns the first element that matches a specified
2CSS selector(s) in the document. Note: The querySelector() method only returns
3the first element that matches the specified selectors. To return all the
4matches, use the querySelectorAll() method instead.*/
5
6// for example
7
8//for class
9document.querySelector(".ClassName")
10
11// for id
12document.querySelector("#ID")
13
14// etc.