Web Development HTML and CSS 3

Question 1

Which CSS unit is relative to the font-size of the root `<html>` element?

Accepted Answer

rem

Answer

`rem` (root em) is always relative to the font-size set on the `<html>` element, making it predictable regardless of nesting.

Question 2

What is the purpose of the HTML `<meta charset="UTF-8">` tag?

Accepted Answer

It declares the character encoding the browser should use to interpret the document

Answer

The charset meta tag tells the browser which encoding to use when reading the HTML bytes, ensuring characters render correctly.

Question 3

In CSS Grid, what does `grid-template-columns: repeat(3, 1fr)` create?

Accepted Answer

Three equal-width columns that share the available space

Answer

`1fr` is a fractional unit; three of them divide the available track space into three equal columns.

Question 4

Which HTML tag produces a thematic break (horizontal rule) between sections?

Accepted Answer

<hr>

Answer

`<hr>` represents a thematic break in content and renders as a horizontal line by default.

Question 5

What CSS property makes text lowercase regardless of how it is typed in HTML?

Accepted Answer

text-transform: lowercase

Answer

`text-transform: lowercase` converts all characters in the element to lowercase at render time without changing the source HTML.

Web Development Practice Test