body {
  font-family: arial, sans-serif;
  font-size: 16px;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  cursor: default;
  overflow: hidden;
  margin: 0;
  padding: 0;
  background-image: -webkit-gradient(
    linear,
    left top,
    right bottom,
    color-stop(0, #000000),
    color-stop(1, #140207)
  );
  background-image: -o-linear-gradient(right bottom, #000000 0%, #140207 100%);
  background-image: -moz-linear-gradient(right bottom, #000000 0%, #140207 100%);
  background-image: -webkit-linear-gradient(right bottom, #000000 0%, #140207 100%);
  background-image: -ms-linear-gradient(right bottom, #000000 0%, #140207 100%);
  background-image: linear-gradient(to right bottom, #000000 0%, #140207 100%);
  background: #140207;
}

a:link, a:visited, a:hover, a:active {
  color: red;
}

#progress {
  width: 50%;
  height: 50%;
  overflow: auto;
  margin: auto;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
}
#percent {
  position: absolute;
  left: 34%;
  top: 39%;
  width: 169px;
  margin-left: -20px;
  z-index: 4;
  color: white;
  font-weight: 900;
  text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}
#progress-bar {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -100px;
  width: 200px;
  z-index: 3;
}

.background {
  background-image: url('imgs/background.png');
  background-repeat: repeat-x;
  background-position: left bottom;
  width: 100%;
  position: absolute;
  height: 100%;
}

.sound {
  display: none;
  position: absolute;
  top: 10px;
  right: 15px;
  width: 30px;
  height: 25px;
  cursor: pointer;
  z-index: 20;
}
.sound-on {
  background-image: url('imgs/soundOn.png');
  background-repeat: no-repeat;
}
.sound-off {
  background-image: url('imgs/soundOff.png');
  background-repeat: no-repeat;
}

#game-over {
  position: absolute;
  top: 0;
  left: 0;
  color: white;
  width: 100%;
  height: 100%;
  text-align: center;
  font-size: 22px;
  display: none;
  z-index: 10;
}

#credits {
  margin-top: 110px;
}

.border {
  background-image: url('imgs/game-border.png');
  height: 718px;
  background-repeat: no-repeat;
  z-index: 5;
  width: 1066px;
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

.wrapper {
  background: black;
  width: 1010px;
  height: 660px;
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

canvas {
  position: absolute;
}