html,body {
	margin: 0;
	padding: 0;
	font: 12px Verdana, sans-serif;
	color: #333;
}
button {
	color: #333;
	padding: 0 0 0 4px;
}
#header {
	padding: 10px 0;	
}
#logo {
	margin: 0 auto;
	display: block;
	height: 40px;
}
#explanation {
	max-width: 272px;
	margin: 10px auto 20px auto;
}
.screen-big {
	display: none;
}
@media all and (min-height: 740px) {
	.screen-big {
		display: block;
	}
}
#menu {
	margin-right: -50px;
	float: left;
}
#menu button {
	border: none;
	width: 30px;
	margin: 5px 0 0 16px;
	border-top: 4px solid #FFA263;
	border-bottom: 4px solid #aaa;
	height: 18px;
	display: block;
	float: left;
	position: relative;
}
#menu button:before {
	content: '';
	border-top: 4px solid #34CC99;
	position: absolute;
	left: 0;
	right: 0;
	bottom: 3px;
}
#popup {
	position: fixed;
	border: 1px solid #aaa;
	display: none;
	top: 50px;
	bottom: 50px;
	left: 50px;
	right: 50px;
	background: white;
}
#popup #closePopup {
	float: right;
}
#popup .content {
	padding: 20px;
	text-align: center;
	font-size: 30px;
	font-size: 3.5vh;
}
#popup .content .container {
	margin: auto;
}
.text-center {
	text-align:center; 
}
.center {
	margin: 0 auto;
	max-width: 600px;
}
.row {
	overflow: hidden;
	margin: 0 auto;
	text-align: center;
}
.chord {
	background-color: #fafafa;
	background-color: #eee;
	border-radius: 3px;
	box-sizing: border-box;
	display: inline-block;
	color: #555;
	width: 60px;
	height: 60px;
	margin: 0 5px 5px 0;
	overflow:hidden;
	font-size: 24px;
}
.chordlabel {
	float:left;
	margin:26px 0 0 7px;
}
#keyboard button.chord-correct, .chord-correct {
	background-color: #34CC99;
}
#keyboard button.chord-present, .chord-present {
	background-color: #FFA263;
}
#keyboard button.chord-wrong, .chord-wrong {
	background-color: #aaa;
}
#keyboard {
	text-align: center;
}
#keyboard button, #keyboard input[type="submit"] {
	width: 26px;
	height: 40px;
	margin: 2px 2px 0 0;
	border: 1px solid #aaa;
	border-radius: 3px;
	box-sizing: border-box;
	display: inline-block;
	vertical-align: middle;
	background-color: #fafafa;
	color: #333;
}
#keyboard button.click-down {
	background-color: #eee;
}
#keyboard input[type="submit"] {
	width: 80px;
}
#keyboard .chordlabel {
	margin: 8px 0 0 0;
	font-size: 11px;
}
#keyboard #enter {
	border-color: #34CC99;
	border-width: 2px;
}
@media all and (min-width:545px){
	#keyboard button {
		width: 40px;
	}
	#keyboard .chordlabel {
		font-size: 14px;
		margin-left: 3px;
	}
}
@keyframes chordflip {
0%{
    transform: rotateX(0deg);
   }
100%{
    transform: rotateX(360deg);
   }
}
.answer{
	text-align: center;
	margin: 0;
}

@keyframes shake {
  0% { transform: translate(2px, 0px) rotate(0deg); }
  10% { transform: translate(-2px, 0px) rotate(-1deg); }
  20% { transform: translate(-6px, 0px) rotate(1deg); }
  30% { transform: translate(6px, 0px) rotate(0deg); }
  40% { transform: translate(2px, 0px) rotate(1deg); }
  50% { transform: translate(-6px, 0px) rotate(-1deg); }
  60% { transform: translate(-6px, 0px) rotate(0deg); }
  70% { transform: translate(6px, 0px) rotate(-1deg); }
  80% { transform: translate(-2px, 0px) rotate(1deg); }
  90% { transform: translate(2px, 0px) rotate(0deg); }
  100% { transform: translate(2px, 0px) rotate(-1deg); }
}
@keyframes idle { 100% {} }