How to change the style of alert box?

Question

I need to change the style of the \"OK\" Button in an alert box.

Answer 1

I don't think you could change the style of browsers' default alert boxes.

You need to create your own or use a simple and customizable library like xdialog. Following is a example to customize the alert box. More demos can be found here.

function show_alert() {
    xdialog.alert("Hello! I am an alert box!");
}