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This guide explores the customization options for JavaScript's default alert, confirm, and prompt boxes. While the default alert box's appearance can be overridden using JavaScript and CSS, compatibility across various browsers is a significant concern. Resources for creating custom alert boxes are provided, along with an explanation of the '===' operator in JavaScript, which checks for strict equality. Learn how to enhance user experience by replacing the standard alert boxes with more versatile, styled alternatives.
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Can one change the appearance of the alert/confirm/prompt box? The default Alert box can be customized (or over-ridden) by JavaScript + CSS. But the drawback is to verify the compatibility on different browsers. See the following:http://slayeroffice.com/code/custom_alert/http://www.gayadesign.com/diy/customize-the-default-alert-function-of-javascript/http://www.codeproject.com/Articles/28812/Custom-Alert-Boxes-using-JavaScript-and-the-DOM • Final Answer • 1. not possible with HTML • 2. not possible with CSS • 3. possible with quite a lot of JavaScript code