HTML, CSS, and JavaScript Quiz

Which of the following is a valid HTML document structure?

• a)

• b)

• c)

• d)

Which HTML element is used to create a form?

• a)

• b)

• c)

• d)

What type of input field should be used for passwords?

• a) text

• b) number

• c) password

• d) hidden

Which input type is used for selecting a color?

• a) color

• b) palette

• c) rgb

• d) picker

Which CSS unit is based on the width of the viewport?

• a) vh

• b) vw

• c) rem

• d) em

Which JavaScript variable declaration prevents reassignment?

• a) var

• b) let

• c) const

• d) function

What does innerHTML do?

• a) Changes the text inside an element

• b) Changes the HTML content inside an element

• c) Adds an event listener

• d) Removes an element

Which event executes when a user clicks an element?

• a) onhover

• b) onmouseover

• c) onclick

• d) ondrag

What does justify-content: center; do in CSS Flexbox?

• a) Aligns items to the start

• b) Aligns items to the center horizontally

• c) Aligns items to the end

• d) Aligns items vertically

Which HTML element is used for bold important text?

• a)

• b)

• c)

• d)