JSFiddle - React, Tailwind, and code Playground

HTML

<div class="top">Top</div>
<div class="footer">Footer</div>
<div class="button"><a href="javascript:void(0)">Toggle scrolling</a></div>

CSS

.top {
    height:800px;
}

.button {
    right:10px;
    top:0px;
    position:fixed;
}

.diableSelection {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

JavaScript

// left: 37, up: 38, right: 39, down: 40,
// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36
var keys = [37, 38, 39, 40, 32, 33, 34, 35, 36];

function preventDefault(e) {
    e = e || window.event;
    if (e.preventDefault) {
        e.preventDefault();
    }
    e.returnValue = false;
}

function keydown(e) {
    for (var i = keys.length; i--;) {
        if (e.keyCode === keys[i]) {
            preventDefault(e);
            return;
        }
    }
}

function wheel(e) {
    preventDefault(e);
}

function disable_scroll() {
    if (window.addEventListener) {
        window.addEventListener('DOMMouseScroll', wheel, false);
    }
    $("html").addClass("diableSelection");
    window.onmousewheel = document.onmousewheel = wheel;
    document.onkeydown = keydown;
}

function enable_scroll() {
    if (window.removeEventListener) {
        window.removeEventListener('DOMMouseScroll', wheel, false);
    }
    $("html").removeClass("diableSelection");
    window.onmousewheel = document.onmousewheel = document.onkeydown = null;
}

$(".button a").toggle(function(){disable_scroll();}, function(){enable_scroll();});