[html] window resize

Javascript

function printWidth() {
    console.log('window', window.innerWidth, window.innerHeight);
    console.log('document.documentElement', document.documentElement.clientWidth, document.documentElement.clientHeight);
    console.log('document.body', document.body.clientWidth, document.body.clientHeight);
    document.getElementById('output').innerHTML  = "window " + window.innerWidth + " " + window.innerHeight + "<br>";
    document.getElementById('output').innerHTML += "document.documentElement " + document.documentElement.clientWidth + " " + document.documentElement.clientHeight + "<br>";
    document.getElementById('output').innerHTML += "document.body " + document.body.clientWidth + " " + document.body.clientHeight + "<br>";
}
document.addEventListener('DOMContentLoaded', function() {
    printWidth();
    window.addEventListener('resize', function() {
        printWidth();
    });
});

HTML

<div class="output"></div>

CSS

html, body {
    /* margin: 0; */
}