@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');
* { box-sizing:border-box; }
html {
	overflow: auto;
}
body {
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	right: 0;
	width: 100vw;
	height: 100vh;
	margin: 0;
	padding: 0;
	background: #111 linear-gradient(black 50%,#111 50%) center/6px 6px;
	color: #0c0;
	overflow: auto;
	font: 16px "Press Start 2P",monospace;
}
a {
	color:inherit;
	text-decoration:none;
}
b {
	text-transform:uppercase;
	color:lime;
}
main {
	padding: 1em;
	line-height: 2em;
	overflow: auto;
	-webkit-overflow-scrolling: touch;
}
.button {
	display: inline-block;
	border: 2px solid #0a0;
	margin: 2px auto;
	padding: 10px;
}
#gamefield {
	width:100%;
	background:transparent;
	padding:0.5em;
	font:inherit;
	text-transform:uppercase;
	color:inherit;
	border:0;
	border-top :2px solid green;
}
::placeholder { color:limegreen; }
.bluebird { color:dodgerblue; }
.bluebird b { color:lightskyblue; }
.bluebird .button { border-color:dodgerblue; }
.bluebird #gamefield { border-top:2px solid dodgerblue; }
.bluebird ::placeholder { color:dodgerblue; }