One day may need to make a semi-transparent background color for a specific block. But how to do this correctly using recent features in CSS3?
CSS3 provides the developer with abilities to manage powerful features such as rounded corners, shadows, gradients, etc. But since not all popular browsers (IE6-8) are aware of the new properties, implementing these kinds of designer ideas sometimes turns into a nightmare.
One of the advantages provided by CSS3 is its ability to specify multiple background images for elements.