body {
	margin: 0 auto;
	min-height: 100vh;
}
ul {
	margin: 0;
	padding: 0;
}
ul>li {
	list-style: none;
	padding: 0;
}
a {
	color: inherit;
}
img {
	user-select: none;
	-webkit-user-drag: none;
}
button, input {
	outline: none;
}
button,
input[type="button"],
input[type="submit"],
input[type="range"] {
	cursor: pointer;
}
#app {
	margin: auto;
	min-height: 100vh;
	background-image: linear-gradient(pink, skyblue);
	background-position: center;
	background-repeat: no-repeat;
	background-attachment: fixed;
}