JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container" class="outer">
    <iframe src="http://hup.hu/"></iframe>
</div>

CSS

iframe {
    display: block;
    position:absolute;
    bottom:0;
    top:20px;
    left:20px;
    right:0;
    padding: 0;
    border: none;
}

.outer {
    top: 20px;
    left: 30px;
    position: absolute;
    width: 300px;
    height: 200px;
    border: solid 1px black;
}

JavaScript

$("#container").draggable({
    //stack: "div",
    iframeFix: true
});