body {
  background-color: #230716;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Kanit, sans-serif;
}

body,
html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}

#demo {
  overflow: hidden;
  width: 800px;
  height: 350px;
  visibility: hidden;
  position: relative;
  //border: 1px solid red;
}

h1 {
  position: absolute;
  width: 800px;
  text-align: center;
  line-height: 300px;
  color: white;
  font-size: 70px;
  font-weight: 400;
  color: #ccc;

  font-family: kanit;
  font-style: italic;
  font-weight: 500;
}