The Art of Doing - Web Development for Beginners - Defining Font Size

This video tutorial explores font size in CSS, focusing on absolute and relative units. It begins with an introduction to font size, explaining the difference between absolute and relative sizes. The tutorial then delves into using pixels for absolute font size, followed by a discussion on using M units for relative sizing based on the parent element. Finally, it covers REM units, which scale relative to the root HTML element. The video provides practical examples and code demonstrations to illustrate these concepts.

What is the primary difference between absolute and relative font sizes in CSS?

• Relative sizes are always larger than absolute sizes.

• Absolute sizes remain constant, while relative sizes can vary based on context.

• Relative sizes are fixed regardless of context.

• Absolute sizes change with screen size.

Which unit is commonly used for absolute font sizes in CSS?

• Em

• Percentage

• Rem

• Pixel

How does a font size defined in pixels behave when the parent element's size changes?

• It doubles in size.

• It becomes smaller.

• It remains unchanged.

• It scales with the parent element.

What does the 'em' unit in CSS represent?

• A fixed size unit.

• A unit relative to the root element.

• A unit relative to the parent element's font size.

• A unit that scales with screen resolution.

If a font size is set to 2em, how does it relate to its parent element's font size?

• It is unrelated to the parent element's font size.

• It is the same size as the parent element's font.

• It is twice the size of the parent element's font.

• It is half the size of the parent element's font.

What is the key characteristic of the 'rem' unit in CSS?

• It scales with the parent element.

• It is larger than the 'em' unit.

• It is fixed and does not scale.

• It scales with the root HTML element.

How does the 'rem' unit differ from the 'em' unit?

• Both are relative to the root element.

• Both are relative to the parent element.

• Rem is relative to the root element, while em is relative to the parent element.

• Rem is relative to the parent element, while em is relative to the root element.

Which unit would you use to ensure font size consistency across different sections of a webpage?

• Pixel

• Rem

• Em

• Percentage

Why might a designer choose to use 'rem' units over 'em' units?

• To avoid using any relative sizing.

• To make font sizes larger than usual.

• To make font sizes dependent on the parent element.

• To ensure font sizes are consistent across the entire webpage.

What is a potential advantage of using relative font sizes in responsive design?

• They automatically adjust to different screen sizes.

• They are easier to calculate.

• They do not require any CSS styling.

• They are always smaller than absolute sizes.