Category Archives: CSS

What is the difference between em and rem units?

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Both em and rem units are based on the font-size CSS property. The only difference is where they inherit their values from. em units inherit their value from the font-size of the parent element rem units inherit their value from the font-size of the root element (html) In most browsers, the font-size of the Continue reading What is the difference between em and rem units?→

What are the advantages of using CSS sprites and how are they utilized?

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CSS sprites combine multiple images into one image, limiting the number of HTTP requests a browser has to make, thus improving load times. Even under the new HTTP/2 protocol, this remains true. Under HTTP/1.1, at most one request is allowed Continue reading What are the advantages of using CSS sprites and how are they utilized?→