html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #000;
}

body {
  cursor: default;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: Helvetica, Verdana, Arial, sans-serif;
}

body,
canvas,
div {
  outline: none;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -khtml-user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

h1.header,
p.header,
p.footer,
.header,
.footer {
  display: none !important;
}

#GameDiv {
  margin: 0;
  position: relative;
  overflow: hidden;
  background: #000;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  max-width: 100vw;
  max-height: 100vh;
}

#Cocos3dGameContainer,
#GameCanvas {
  width: 100%;
  height: 100%;
}

canvas {
  display: block;
  background-color: rgba(0, 0, 0, 0);
}

:root {
  --safe-top: env(safe-area-inset-top);
  --safe-right: env(safe-area-inset-right);
  --safe-bottom: env(safe-area-inset-bottom);
  --safe-left: env(safe-area-inset-left);
}