Hi. This post is just a test.
Let's find out what is possible in PeakD editor

1. Ctrl+Z does not working
2. Can't change color of text or background (style doesn't work)
3. Can't write down math equations with <math> or attach some libs to use LateX

Nice things:

1. The gifs!
2. ∫(f(x))dx x⟶∞ Lets say, Html Entities are cool. Poor in comparison with LateX, but still :D
3. 😁 Emojis based on Html Entities

4.  <pre> with <li> looks good in numerating something :D
   

Book title :D
And some kind of description
Lorem Ipsum is simply dummy text of the printing and typesetting industry.
Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an
unknown printer took a galley of type and scrambled it to make a type specimen book.
It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
Alright - <pre> doesn't wrap lines :D Maybe i can use it as <spoiler> mark :D

=========================================Spoiler===============================================================> It works :D
=========================================Spoiler=====================================================> You have to scroll to see the text. 

Looks good as a Title
Is is just <pre> with header :D