What are the two components of every CSS style definition?

When using the background-color property with rgba(255, 0, 255, 0.5) what does the "a" refer to?

When using "position: absolute;" the reference point is the browser window UNLESS one of the parent elements contain one of the following...

Which property is used to set whether table borders are collapsed into a single border or detached as in standard HTML?

What is the syntax for a customized cursor?

Which properties specifying whether to write the text from left to right or from right to left?

To make childdiv vertically center of given code, what should the 'display' property of parentdiv and childdiv be? #parentdiv { width: 200px; height: 400px; vertical-align: middle; } #childdiv { width: 100px; height: 50px; } Vertical Center

What is the initial value of the hyphens property?

What is the initial value of the opacity property?

Read the following: @page rotated {size: landscape} TABLE {page: rotated; page-break-before: right} What will this code do?

Suppose that a tag has 10 tags. In this case which statement is correct given the following? td:nth-child(3n+0){ background-color: orange; }