Follow Up

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:
• 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?