Today we will take a look at :before or ::before and :after or ::after pseudo elements or selectors you can use in your CSS stylesheet. The difference between single and double-colon syntax is that single-colon is from CSS2.1 and double-colon is from CSS3 and not supported by IE8. Fortunately, all browsers support at least the single-colon version. Both of these elements are used right through appending to element you want to style.
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