What does the background-origin property specifies?

Which is valid media types for media query? Check all that apply.

Which property specifies the stack order of an element?

How do you set opacity of background-color to 50%?

Which is NOT correct?

Which is not valid for position property?

Which property can be used to specify all the list properties into a single expression?

How would you define class 'myclass' that sets the width of an element to 640px and the height to 480px ?

Which of the following css declarations will create bold text?

What hyperlink property is typically used to specify whether destination links should open in a new window or in a new tab of an existing window?

What rule is generally used, for responsive web design, to target devices with different widths?