SweetAlert automatically centers itself on the page and looks great no matter if you're using a desktop computer, mobile or tablet. It's even highly customizable, as you can see below.

The type of the modal. SweetAlert comes with 4 built-in types which will show a corresponding icon animation: "warning", "error", "success" and "info". You can also set it as "input" to get a prompt modal. It can either be put in the object under the key "type" or passed as the third parameter of the function.