Changing style

const titleElement = document.querySelector("h1");
titleElement.style = "background-color:lightblue;"
const emElement = document.querySelector("em");
emElement.style = "color:red;"

21/41

1 - CSE104 Web Programming

2 - Introduction to JavaScript

3 - Why JavaScript

4 - Quick history

5 - Current state

6 - JavaScript: An Interpreted Language

7 - JavaScript: An Interpreted Language

8 - JavaScript: An Interpreted Language

9 - First steps in JavaScript

10 - Running JavaScript code

11 - Complete header template

12 - Display JavaScript output

13 - Loops, conditionals

14 - Modifying webpage through DOM in JS

15 - DOM: Document Object Model

16 - DOM is visible in the developer mode

17 - DOM access from JavaScript

18 - Modifying a webpage

19 - Modifying a webpage with a loop

20 - Adding elements

21 - Changing style

22 - User events

23 - Event based programming

24 - Event based programming: Listener

25 - Event based programming: Callback

26 - Event in practice: Mouse click

27 - Webpage modification in the callback function

28 - Callback parameters (event)

29 - Event Target

31 - Example fully defined in JS

32 - Events type

33 - JavaScript language

34 - Good practices

35 - Declaring variables in JS

36 - Good practices to declare variables

37 - Rem on const

39 - Data structure