JSFiddle - React, Tailwind, and code Playground

HTML

<div class = "wrapper">
    <iframe
src="http://5october.ru/showmepliz/?p=buttom&r=35e460857dbc9c38321d08220199a397"
    ></iframe>
       
</div>

CSS

.wrapper {
    overflow: hidden;
    height: 350px;
    border: 1px solid red;
}

.wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}