JSFiddle - React, Tailwind, and code Playground

HTML

<div id='outerdiv'> 
<iframe src="https://toster.ru/" id='innerIframe' scrolling=no></iframe> 
</div>

CSS

#outerdiv { 
  width:800px; 
  height:600px; 
  overflow:hidden; 
  position:relative; 
  outline: dashed 2px red;
}

#innerIframe { 
  position:absolute; 
  top:-50px; 
  left:-50px; 
  width:600px; 
  height:400px; 
  outline: dashed 2px orange;
}