body {
    background: transparent;
    overflow: hidden;
}
.gamepad {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
}
.help {
    background: whitesmoke;
    border: 1px solid rgba(0, 0, 0, 0.2);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
    display: none;
    font-size: 10pt;
    left: 50%;
    min-width: 400px;
    padding: 20px;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
}
.help.active {
    display: block;
}
.help h2 {
    margin-top: 0;
    margin-bottom: 1.5em;
}
.help h3 {
    margin-top: 1.5em;
}
.help p:last-child {
    margin-bottom: 0;
}

.help table {
    border-collapse: collapse;
    border-spacing: 0;
    max-width: 100%;
    width: 100%;
}

.help th {
    text-align: left;
}

.help th, .help td {
    border-top: 1px solid #ddd;
    line-height: 1.42857143;
    padding: 8px;
    vertical-align: top;
}

.help table>thead>tr>th {
    border-bottom: 2px solid #ddd;
    border-top: 0;
    vertical-align: bottom;
}

kbd {
	display: inline;
	display: inline-block;
	min-width: 1em;
	padding: .2em .3em;
    margin: 0 .2em;
    font: normal 1em monospace;
	text-align: center;
	text-decoration: none;
	-moz-border-radius: .3em;
	-webkit-border-radius: .3em;
	border-radius: .3em;
	border: none;
	cursor: default;
	-moz-user-select: none;
	-webkit-user-select: none;
	user-select: none;
}
kbd[title], .key[title] {
	cursor: help;
}

kbd, kbd.dark {
	background: rgb(80, 80, 80);
	background: -moz-linear-gradient(top, rgb(60, 60, 60), rgb(80, 80, 80));
	background: -webkit-gradient(linear, left top, left bottom, from(rgb(60, 60, 60)), to(rgb(80, 80, 80)));
	color: rgb(250, 250, 250);
	text-shadow: -1px -1px 0 rgb(70, 70, 70);
	-moz-box-shadow: inset 0 0 1px rgb(150, 150, 150), inset 0 -.05em .4em rgb(80, 80, 80), 0 .1em 0 rgb(30, 30, 30), 0 .1em .1em rgba(0, 0, 0, .3);
	-webkit-box-shadow: inset 0 0 1px rgb(150, 150, 150), inset 0 -.05em .4em rgb(80, 80, 80), 0 .1em 0 rgb(30, 30, 30), 0 .1em .1em rgba(0, 0, 0, .3);
	box-shadow: inset 0 0 1px rgb(150, 150, 150), inset 0 -.05em .4em rgb(80, 80, 80), 0 .1em 0 rgb(30, 30, 30), 0 .1em .1em rgba(0, 0, 0, .3);
}

kbd.light {
	background: rgb(250, 250, 250);
	background: -moz-linear-gradient(top, rgb(210, 210, 210), rgb(255, 255, 255));
	background: -webkit-gradient(linear, left top, left bottom, from(rgb(210, 210, 210)), to(rgb(255, 255, 255)));
	color:  rgb(50, 50, 50);
	text-shadow: 0 0 2px rgb(255, 255, 255);
	-moz-box-shadow: inset 0 0 1px rgb(255, 255, 255), inset 0 0 .4em rgb(200, 200, 200), 0 .1em 0 rgb(130, 130, 130), 0 .11em 0 rgba(0, 0, 0, .4), 0 .1em .11em rgba(0, 0, 0, .9);
	-webkit-box-shadow: inset 0 0 1px rgb(255, 255, 255), inset 0 0 .4em rgb(200, 200, 200), 0 .1em 0 rgb(130, 130, 130), 0 .11em 0 rgba(0, 0, 0, .4), 0 .1em .11em rgba(0, 0, 0, .9);
	box-shadow: inset 0 0 1px rgb(255, 255, 255), inset 0 0 .4em rgb(200, 200, 200), 0 .1em 0 rgb(130, 130, 130), 0 .11em 0 rgba(0, 0, 0, .4), 0 .1em .11em rgba(0, 0, 0, .9);
}