==Simple Message Modal==

This code was similar to w3school example:
https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_modal

for people who want a simple modal.I ported the w3school example here.

How to use : 

1. Get the id of the modal you want.

2. Enter the name of the button.

[pop_me_up id='id of pop up' btn_name="name of button"]