How to style alert? (Sorry, for my grammar mistakes)

Question

I'm write the code, this code have alert with the very large text. I wanna style this alert, because if I'll leave everything as it is, the user will be bored reading large text.

Answer 1

<span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span>

Answer 2

This is one way to do this, with you own alert:

https://code.sololearn.com/WxbjPA3GaVuJ/?ref=app

Answer 3

https://code.sololearn.com/WaB2vCB0urR1/?ref=app