HTML CSS and JavaScript for Beginners - A Web Design Course - Change Styles DOM

The video tutorial discusses the advantages of using classes for element selection in JavaScript, highlighting the efficiency of class-based selection over individual property updates. It demonstrates how to apply styles to elements using JavaScript, including changing background colors and manipulating style attributes. The tutorial further explores advanced style manipulation techniques, such as adjusting borders, font sizes, and display properties. Finally, it encourages viewers to practice these techniques and provides tips for effective styling, emphasizing the importance of understanding JavaScript objects and style properties.

What is the purpose of using classes in JavaScript for styling elements?

Explain how to select an element using its class name in JavaScript.

Describe the process of applying a background color to an element using JavaScript.

What are some common style properties that can be modified using JavaScript?

Discuss the importance of quoting property names in JavaScript when applying styles.

What happens if you try to apply a style to an element that already has a style attribute?

How can you manipulate the display property of an element in JavaScript?