In which example below will all HTML elements with class="master" will be center-aligned?

Which of the following CSS3 properties is used to round the corners of elements?

Which of the following characters is used to end a css declaration block?

Which of the following CSS declarations would change the border style?

In reality layers are often used in more dynamic ways:

The id selector uses the id attribute of the HTML element, and is defined with a...

When elements overlap, they are ordered on the z-axis (i.e., which element covers another). The z-index property can be used to specify the z-order of overlapping elements. Which set of statements about the z-index property are true?

There are many properties that can be used to align elements and create page layouts such as float, position, flexbox and grid. Of these four properties, which one should be used to align a global navigation bar which stays fixed at the top of the page?

Three of these choices are true about class selectors. Which is NOT true?

What is the line-height property primarily used for?

What is true of block and inline elements? (Alternative: Which statement about block and inline elements is true?)