So I decided to create a notification app using App Builder because I am sick and tired of creating and recoding that on all my client projects.
I made some properties to be able to set duration, standard message and all background colors for different types of notifications like warning, info, error and success.
Then I made a simple function to use, send in the type and the message.
And on the sites it will reveal itself from the top and then dissapear again after the duration you have set.
Thank you Wix for the App Builder.