* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

* + * {
	margin-top: 1.5em;
}

html {
	background-color: #2b2b2b;
	color: #fff;
	font-size: 1em;
	line-height: 1.5;
	min-height: 100vh;
}

body {
	margin: 0;
	padding-top: 3em;
	font-size: 1rem;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

header,
main,
footer div {
	max-width: 50em;
	margin-left: auto;
	margin-right: auto;
}

ol {
	margin-left: 3em;
}

code {
	background-color: rgba(0,0,0,.2);
	padding: .375rem .75rem;
	font-size: .75rem;
}

main {
	width: 100%;
	flex: 1 0 0%;
}

a {
	color: springgreen;
	transition: color .2s linear;
}
a:hover,
a:focus {
	color: cyan;
}

form {
	max-width: 80%;
	margin: 1.5em auto 0;
}

label {
	display: block;
}

input, textarea, select {
	display: block;
	width: 100%;
	background-color: transparent;
	border: 1px solid #999;
	border-radius: 0;
	padding: 1em;
	color: inherit;
}

input:focus, textarea:focus, select:focus {
	border-color: #fff;
}

textarea {
	resize: vertical;
}

select {
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	background: #2b2b2b url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' preserveAspectRatio='xMaxYMid'%3E%3Cpath fill='none' stroke='%23fff' d='M2 6l10 12L22 6'/%3E%3C/svg%3E") 100% no-repeat;
	background-size: auto 60%;
	background-position: calc(100% - .5em) 50%;
	padding-right: 3em;
	margin-top: 1.5em;
}

select::-ms-expand {
	display: none;
}

option {
	margin-left: .75rem;
}

input[type="checkbox"],
input[type="radio"] {
	display: inline-block;
	width: auto;
	transform: translateY(.125em);
}

button {
	position: relative;
	background: springgreen;
	color: #1b1b1b;
	border: 0;
	border-radius: .375em;
	padding: .75rem 1.5rem;
	cursor: pointer;
	width: auto;
	transition: background-color .2s linear;
}
button::after {
	content: "🧮";
	font-size: 2em;
	margin-left: 3rem;
	position: absolute;
	top: 50%;
	z-index: -1;
	transform: translate(-100%, -50%);
	opacity: 0;
	transition: opacity .1s ease-out, transform .2s linear;
}
button:hover {
	background: cyan;
}
button:hover::after {
	transform: translate(0, -50%);
	opacity: 1;
}

aside {
	background-color: #666;
	padding: .75em 1.5em;
}

footer {
	background-color: #1b1b1b;
	padding: .75em;
	text-align: right;
}