button#btn {
	background: #3AAAFF;
}
button#btn1 {
	background: #33D594;
}
button#btn2 {
	background: #E5564E;
}
button#btn3 {
    background: #FFBB00;
    color: yellow;
}
#testy {
	position: fixed;
	top: 0;
	right: 20px;
	z-index:9999999;
}
#buttons {
	width: 620px;
	height: 50px;
	margin: 50px auto;
}
article {
	width: 600px;
	margin: 30px auto;
}
code {
	color: blue;
}