1 I' ve used this exact technique lots of times, and it has always worked well for me. One variant is if you need to cancel the postback event for a server- side button based upon some client- side calculation, you can include window. returnValue = false; in your code that executes in the client- side onclick event for your button. CSS is a language that describes the style of an HTML document. CSS describes how HTML elements should be displayed.
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