body {
  background: #000000;
  font-family: sans;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content {
  display: block;
}

.emscripten {
  padding-right: 0;
  margin-left: auto;
  margin-right: auto;
  display: block;
}

textarea.emscripten {
  font-family: monospace;
  width: 80%;
}

div.emscripten {
  text-align: center;
}

div.emscripten_border {
  border: 1px solid black;
}

#status {
  font-weight: bold;
  color: #999;
}

/* the canvas *must not* have any border or padding, or mouse coords will be wrong */
canvas.emscripten {
  border: 0px none;
  background-color: black;
}

.spinner {
  height: 50px;
  width: 50px;
  margin: 0px auto;
  -webkit-animation: rotation 0.8s linear infinite;
  -moz-animation: rotation 0.8s linear infinite;
  -o-animation: rotation 0.8s linear infinite;
  animation: rotation 0.8s linear infinite;
  border-left: 10px solid rgb(0, 150, 240);
  border-right: 10px solid rgb(0, 150, 240);
  border-bottom: 10px solid rgb(0, 150, 240);
  border-top: 10px solid rgb(100, 0, 200);
  border-radius: 100%;
  background-color: #000;
}

@-webkit-keyframes rotation {
from {
  -webkit-transform: rotate(0deg);
}

to {
  -webkit-transform: rotate(360deg);
}
}

@-moz-keyframes rotation {
from {
  -moz-transform: rotate(0deg);
}

to {
  -moz-transform: rotate(360deg);
}
}

@-o-keyframes rotation {
from {
  -o-transform: rotate(0deg);
}

to {
  -o-transform: rotate(360deg);
}
}

@keyframes rotation {
from {
  transform: rotate(0deg);
}

to {
  transform: rotate(360deg);
}
}