.center {
  justify-content: center;
  align-items: center;
}

 a:link {
  text-decoration: none;
  color: #3182bd;
}

a:visited {
  text-decoration: none;
  color: #3182bd;

}

a:hover {
  text-decoration: underline;
  color: #3182bd;
}

a:active {
  text-decoration: underline;
  color: #3182bd;
}

@media screen and (min-width: 48em) {
	body {
		margin: 4%;
		padding: 10px;
	  font-family: sans-serif;
	  font-weight: 300;
	  font-size: 18px;
	  line-height: 1.5em;
	  color: #5D6063;
	}
  .demo-container {
    width: 80%;
    margin: 0 auto;
  }
}
@media screen and (max-width: 48em) {
	body {
		background-color: #fff;
		padding: 5px;
	  font-family: sans-serif;
	  font-weight: 300;
	  font-size: 18px;
	  line-height: 1.5em;
	  color: #5D6063;
	}
  .demo-container {
    width: 98%;
    margin: 0 auto;
  }
}

.em {
  font-style: italic;
}

.strong {
  font-weight: bold;  /* Or 700 */
}

h1, h2, h3, h4, h5, h6 {
  /* line-height: 1.3em; */
  font-weight: normal;
  font-style: normal;
}

.x3dom-progress {
	display: none
}
canvas {
	outline: none;
}
x3d {
	outline: none
}