.pattern-bg{
	background-image: url("bg-pattern-1.png");
}
#song-select{
	background-image: url("bg_genre_0.png");
}
#title-screen{
	background-image: url("title-screen.png");
}
#loading-don{
	background-image: url("dancing-don.gif");
}
#touch-drum-img{
	background-image: url("touch_drum.png");
}
#touch-full-btn{
	background-image: url("touch_fullscreen.png");
}
#touch-pause-btn{
	background-image: url("touch_pause.png");
}
.song-stage-1{
	background-image: url("bg_stage_1.png");
	background-size: calc(100vh / 720 * 66);
}
.song-stage-2{
	background-image: url("bg_stage_2.png");
	background-size: calc(100vh / 720 * 254);
}
.song-stage-3{
	background-image: url("bg_stage_3.png");
	background-size: calc(100vh / 720 * 458);
}