body {
    margin: 0;
    font-family: Verdana;
	font-size: 14px;
	background-color: Snow;
	color: #000000;
	padding-left: 12px;
}
img {
  border: 12;
  max-width: 100%;
  height: auto;
  pointer-events: none;
}

video {
    max-width: 100%;
    height: auto;
}

h1 {
  text-align: center; 
}
h2 { 
  text-align: center; 
}
h3 {
    text-align: center; 
}
.auto-resizable-iframe {
  max-width: 420px;
  margin: 0px auto;
}

.auto-resizable-iframe > div {
  position: relative;
  padding-bottom: 75%;
  height: 0px;
}

.auto-resizable-iframe iframe {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
}