Opacity can cause an image to appear:

Using li:nth-child(odd) will:

When styling for devices with 3-3.5 inch screen sizes it's best to use:

True or False: Due to CSS box model you cannot create a circle using CSS3.

CSS elements specified in a stylesheet should always end with ___________.

What would 'p:first-child' be an example of?

Can a percentage value be given in a ruby-align property?

Which rule is equivalent to the em { color: rgb(255,0,0) } style?

Which is not valid values for the target-new property?

Which is not a user interface element fragment selector?

backface-visibility:hidden; will this property hide the back side when an element is rotated?