html, body {
  height: 100%;
  margin:0;
}
body {
  background-color: black;
}
.container, .logo-container {
  position:relative;
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0;
  background-color: black;
  z-index: 1;
}

.logo-container {
  max-width: 1000px;
  margin: 0 auto;
}

.logo {
  max-width: 100%;
  max-height: 100%;
  padding:50px;
  box-sizing: border-box;
  cursor: pointer;
}
iframe{
  position:absolute;
  top:0;
  width:100%;
  height:100%;
  padding:50px;
  box-sizing: border-box;
  z-index: 0;
}