HTML5: How to specify the address of the document's cache manifest?

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HTML Code:

<!doctype html>
<html manifest="https://www.w3resource.com/html-css-exercise/basic/solution/w3r_example.appcache">
<title>This is an example of HTML manifest attribute</title>
<link rel="stylesheet" type="text/css" href="https://www.w3resource.com/html-css-exercise/basic/solution/findbrowser.css">
<img src="https://www.w3resource.com/images/w3resource-logo.png" alt="w3resource logo">
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed urna eros, varius vitae odio at, scelerisque bibendum dui. Suspendisse pellentesque mauris non blandit porttitor. In hac habitasse platea dictumst. Sed eu leo eu leo sagittis porttitor id id lorem. Fusce pretium justo nisl, non porttitor nulla sollicitudin a. Duis porta in metus congue rhoncus. Pellentesque non orci massa. Sed dictum, massa et ornare rutrum, dui erat vehicula felis, non pellentesque sapien dui maximus dolor.</p>
<button onclick="findBrowser()">Show my browser</button>
<p id="display"></p>
<script src="https://www.w3resource.com/html-css-exercise/basic/solution/findbrowser.js"></script>
<p>Note : If you <a href="https://www.w3resource.com/html-css-exercise/basic/solution/findbrowswer.html">open the file and then go offline, you will still be able to see the page and interactivity</p>

CSS Code:

body {
background-color: #f4f7f8;
color: #1eb6f1

button {
background-color: #52ad4c;
color: #fff;
font-size: 20px

a:link, a:visited, a:active, a:hover {
color: #ea6512

JavaScript Code :

function findBrowser() {
  var wn = window.navigator,
        platform = wn.platform.toString().toLowerCase(),
        userAgent = wn.userAgent.toLowerCase(),

// ie
    if (userAgent.indexOf('msie',0) !== -1) {
        browserName = 'ie';
        os = 'win';
        storedName = userAgent.match(/msie[ ]\d{1}/).toString();
        version = storedName.replace(/msie[ ]/,'');

        browserOsVersion = browserName + version;
var el = document.getElementById("display");
el.innerText = platform + userAgent;


# v1 2015-06-26
# This is another comment

Live Demo:

See the Pen html-manifest-answer by w3resource (@w3resource) on CodePen.

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HTML-CSS: Tips of the Day

HTML span align center not working?

<span align="center" style="border:1px solid red;">
    This is some text in a div element!

However, the align attribute is deprecated. You should use the CSS text-align property on the container.

<div style="text-align: center;">
    <span style="border:1px solid red;">
        This is some text in a div element!

Ref: https://bit.ly/3RZXhp2