JSFiddle - React, Tailwind, and code Playground

JavaScript

//this function will return true if the window is too small
    var isTooSmall = function(w, h){
        console.log(w + " " + h); //just to check width and height
        var min_w = 200; //set these to what you wish
        var min_h = 200;
        if(w < min_w || h < min_h){
            return true;
        }
        else return false;
    };

    //this function will allow us to bind listeners given an object and         its event.
    //Check the linked stackoverflow answer for more explanation
    var addEvent = function(object, type, callback) {
        if (object == null || typeof(object) == 'undefined') return;
        if (object.addEventListener) {
            object.addEventListener(type, callback, false);
        } else if (object.attachEvent) {
            object.attachEvent("on" + type, callback);
        } else {
            object["on"+type] = callback;
        }
    };

    //resize listener
    addEvent(window, "resize", function(event) {
        console.log(isTooSmall(window.innerWidth, window.innerHeight));

    });

    //onload listener
    window.onload = function () { 
        console.log(isTooSmall(window.innerWidth, window.innerHeight));
    }