body {
	background: #837400;
	color: #333;
	padding: 50px;
}

#game {
	position: relative;
	width: 320px;
	height: 440px;
	overflow: hidden;
}

#game, footer {
	width: 320px;
	margin: 0 auto;
}

.scene {
	position: absolute;
	width: 100%;
	height: 100%;
}

#menu-scene {
	background: #ccc url(../images/menu_bg.png);

	display: flex;
	justify-content: center;
	align-items: center;
}

#game-scene {
  background: url(../images/game_bg.png);
  top: -440px;
}

#game-scene.show-scene {
  top: 0;
  transition: top 0.3s ease-out;
}



/* Menu Scene Elements */
a[href='#game'] {
	width: 146px;
	height: 78px;
	background: url(../images/play_button.png);
	overflow: hidden;
	display: block;
}

a[href='#game']:hover {
	background-position: -146px;
}

a[href='#game']:active {
	background-position: -292px;
}

a[href='#game'] span {
	display: block;
	margin-top: -999px;
}


/* Game Scene Elements */

.hit-line {
	background: url(../images/hit_line.png) center center no-repeat;
	position: absolute;
	width: 50px;
	height: 50px;
}


.show {
	opacity: 1;
}

.hide{
	opacity: 0;
	transition: opacity .2s linear;
}

#hit-line-1 {
	left: 35px;
	top: 335px;
}

#hit-line-2 {
	left: 135px; /* 320/2-50/2 */
	top:  335px;
}

#hit-line-3 {
	left: 235px;
	top: 335px;
}