How can I set an alert in my website?

Question

I want to put a alert in my website. Which element should I use?

Answer 1

1) See Mohammad Mirali's answer

2) If you want people to enjoy your website and come back, don't use alerts unless it is absolutely necessary

Answer 2

You can use the java script alerts, for example:
alert ('Your Text' );
You can see other examples in the code below

https://code.sololearn.com/W6zlC7FGYn0y/?ref=app

Answer 3

As Anna said, normal alerts doesn't look good on websites but they do the job.
Try using custom alert boxes like this one:
https://sweetalert.js.org/