Which CSS property controls the text size?

The outline property is used to control:

Which property can be used, along with a position property, to create an effect of layers?

Which of the following is correct CSS syntax?

Which is the correct CSS syntax?

What property alters an elements background color?

You have a large image that needs to fit into a 400 x 200 pixel area. What should you resize the image to if your users are using Retina displays?

When would you use the @font-face method?

Which choice is not valid value for the font-style property?

Which statement is true of the single colon (:) or double colon (::) notations for pseudo-elements-for example, ::before and :before?

What is the ::placeholder pseudo-element used for?