.iframe-wrapper {;   
  aspect-ratio: 16 / 9;
  position: relative;
  border: none;
  width: 96%;
  background-color: #000000;
}

.ktsPC_iframe {
	background-color: #000000;
	width: 100%;
	height: 100%;
	border: none;
	margin: 0 auto 0 -20px;
	border-radius:25px; 
	box-shadow: 4 px 4px 4px rgba(255,255,255,0.8);
}