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How can I change the styling of JavaScript alert button?

To change the styling of JavaScript alert button, use the custom alert box. You can try to run the following code to change the styling of alert buttons. The button looks different and more fancy −

Example

Live Demo

<!DOCTYPE html>
<html>
   <head>
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js">
      </script>
      <script>
         function functionAlert(msg, myYes)  {
            var confirmBox = $("#confirm");
            confirmBox.find(".message").text(msg);
            confirmBox.find(".yes").unbind().click(function() {
               confirmBox.hide();
            });
            confirmBox.find(".yes").click(myYes);
            confirmBox.show();
         }
      </script>
      <style>
         #confirm   {
            display: none;
            background-color: #000000;
            color: #FCD116;
            border: 1px solid #aaa;
            position: fixed;
            width: 250px;
            left: 50%;
            margin-left: -100px;
            padding: 6px 8px 8px;
            box-sizing: border-box;
            text-align: center;
         }
         #confirm button {
            background-color: #FFFFFF;
            display: inline-block;
            border-radius: 12px;
            border: 4px solid #aaa;
            padding: 5px;
            text-align: center;
            width: 60px;
            cursor: pointer;
         }
         #confirm .message  {
            text-align: left;
         }
      </style>
   </head>
   <body>
      <div id = "confirm">
         <div class = "message">This is a warning message.</div>
         <button class = "yes">OK</button>
      </div>
      <input type="button" value="Click Me" onclick="functionAlert();" />
   </body>
</html>
Updated on 16-Jun-2020 13:30:26

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