body {
    background: #324c5f;
}

img{
  padding: 10px;
}
iframe {
  max-width: 100%;
  height: auto;
  padding-top: 100px;
}
.embed-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.embed-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}