Follow Up
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
What is the Meaning of === in JavaScript?