Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

HTML

<form id="form1" runat="server">
        <div >
            <div id="left">
                <asp:Button runat="server" ID="b1" OnClick="b1_Click" Text="Click" />
            </div>
            <div id="right">
                <iframe src="www.google.com" id="ifr1" runat="server" style="width: 100%; height: 100%" />
            </div>
        </div>
    </form>

CSS

html, body {height: 100%; width: 100%; padding: 0; margin: 0; background-color: red;} 

#left {float: left; width: 100%;}
#right {float: left; width: 100%;}
#form1 {background-color: beige; overflow:hidden; height: 100%;}
#ifr1 {border:none; height: 100%;}

JavaScript

/* stretch iframe to fill the screen */

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JSFiddle - React, Tailwind, and code Playground

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CSS

JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

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Use pre-released features

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Console