.container {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 62.5%; /* 8:5 Aspect Ratio */
}

/* Then style the iframe to fit in the container div with full height and width */
.responsive-iframe {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

* {
  box-sizing: border-box;
}

/* The actual content */
.contenti {
  padding: 20px 30px;
  background-color: rgba(192, 175, 175, 0.863);
  position: relative;
  border-radius: 6px;
}