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	<p>Lorem ipsum dolor sit amet consectetur, adipisicing elit. Voluptatem vel cumque quis animi nisi, odit totam laborum quam molestias sed quidem, dolorum deleniti quae possimus obcaecati eaque praesentium alias! Aperiam.</p>
	<p>Blanditiis maxime odit expedita modi a itaque? Placeat expedita nam, aut ea odit dolores est optio ut odio pariatur! Similique pariatur perferendis quaerat sequi. Eligendi qui illo nesciunt voluptates facilis!</p>
	<p>Reiciendis rem inventore asperiores sapiente cupiditate officia facilis earum accusantium deserunt, incidunt molestias! Fuga fugiat eveniet explicabo. Eveniet soluta voluptates saepe minima veniam illum error atque quibusdam, veritatis cupiditate culpa.</p>
	<p>Voluptatum eligendi totam, beatae ut ea, minus aut voluptate atque eaque maiores officiis praesentium aperiam impedit consectetur vero quia at nostrum? Similique dolorem cupiditate quis veniam! Soluta assumenda voluptatum delectus.</p>

	- <a id="add-content" href="" role="button">ADD CONTENT</a>
	- <a id="remove-content" href="" role="button">REMOVE CONTENT</a>


                *, *:before, *:after { 
	box-sizing: border-box; 

html, body { height: 100%;}

body {
	line-height: 1.5;
	font-family: sans-serif;
	> footer {
		position: sticky;
		top: 100vh;

main { padding: 0 20px;}

header, footer {
	padding: 20px;
	background-color: #eee;


                const main = document.querySelector('main')
const html = main.innerHTML
const add = document.getElementById('add-content')
const remove = document.getElementById('remove-content')

add.addEventListener('click', (ev)=> {
	main.innerHTML += html

remove.addEventListener('click', (ev)=> {
	main.querySelectorAll('p').forEach((el,i)=> {
		if (i > 3) el.remove()