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6 changed files with 2555 additions and 7 deletions
28
README.md
28
README.md
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@ -3,3 +3,31 @@
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[](https://app.netlify.com/sites/tdpeuter-down/deploys)
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Ultra simple website to tell people a service is down
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## Starting the website
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```shell
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npm run start
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```
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## Setup networking
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### Using [Cloudflare](https://dash.cloudflare.com)
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If you want to use Cloudflare to handle redirection to the website, you can use [Page Rules](https://developers.cloudflare.com/support/page-rules/).
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First, make sure the DNS records for the (sub-) domains you want to redirect are [being proxied through Cloudflare](https://developers.cloudflare.com/dns/manage-dns-records/reference/proxied-dns-records). Then, head over to [Redirect Rules](https://developers.cloudflare.com/rules/url-forwarding/) (Page Rules are harder to configure, and it seems like [Cloudflare itself is more keen of Redirect Rules too](https://developers.cloudflare.com/support/page-rules/recommended-page-rules-to-consider/)).
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Create a Single Redirect rule that looks similar to:
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```
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# When incoming requests match...
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(http.host in {"example.com" "another.example.com"})
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# Then URL redirect
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Dynamic
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concat("https://your.host.tdl/?destination=", http.request.full_uri)
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302
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```
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Enable the rule and everything should be set!
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31
index.html
31
index.html
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@ -1,16 +1,33 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Service unavailable</title>
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<link rel="shortcut icon" type="image/png" href="assets/icon.jpg">
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<meta name="color-scheme" content="light dark">
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<html lang="en">
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<head>
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<meta charset="UTF-8"/>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="robots" content="noindex">
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<title>Service unavailable</title>
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<link rel="stylesheet" type="text/css" href="style.css">
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<link rel="shortcut icon" type="image/png" href="assets/icon.jpg">
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</head>
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<body>
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<h1>Oh no!</h1>
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<p>The website you are trying to reach is currently down. Your URL works, but the system is in maintenance and powered off temporarily.</p>
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<main>
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<h1>Oh, no!</h1>
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<p>The website you are trying to reach is currently down. Your URL works, but the system is in maintenance and/or powered off temporarily.</p>
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<p>Please come back later!</p>
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<p>Kind regards, <a href="https://tibo.depeuter.dev">Tibo De Peuter</a></p>
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<div id="checkContainer"></div>
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<img src="/assets/oh-no-kitten.jpg" alt="kitten holding paw to forehead"/>
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</main>
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<footer>
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<p>
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Made with <span class="heart">♥</span>.
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<a href="https://git.depeuter.dev/tdpeuter/down-website" about="source code of this webpage" class="hidden">Source code</a>
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</p>
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</footer>
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<script src="script.js"></script>
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</body>
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</html>
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2332
package-lock.json
generated
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2332
package-lock.json
generated
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19
package.json
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19
package.json
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{
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"name": "down-message",
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"version": "1.1.0",
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"description": "Ultra simple website to tell people a service is down",
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"main": "index.html",
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"scripts": {
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"start": "live-server --port=3000 .",
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"repository": {
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"type": "git",
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"url": "https://git.depeuter.dev/tdpeuter/down-message.git"
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},
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"author": "Tibo De Peuter <tibo@depeuter.dev>",
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"license": "GPL-3.0-only",
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"devDependencies": {
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"live-server": "^1.2.2"
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}
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}
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71
script.js
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71
script.js
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async function websiteUp(url) {
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// TODO Fix CORS
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try {
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const response = await fetch(url, { method: 'options' });
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return response.ok;
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} catch (error) {
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console.error(`An error occurred while checking the URL '${url}': ${error.message}`);
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}
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}
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async function check(destination, container, dot, message, button) {
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dot.className = 'dot orange';
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message.textContent = 'Checking availability...';
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button.style.visibility = 'hidden';
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const destinationUp = await websiteUp(destination);
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if (destinationUp) {
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console.log('Destination is back up');
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dot.className = 'dot green';
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message.textContent = 'URL is back online.';
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button.textContent = "Go to URL.";
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button.onclick = function () {
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window.location.href = destination;
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};
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} else {
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dot.className = 'dot red';
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message.textContent = 'URL is still down.';
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button.textContent = "Check again.";
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button.onclick = function () {
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check(destination, container, dot, message, button);
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};
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}
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button.style.visibility = 'visible';
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}
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function createCheckButton(destination) {
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const dot = document.createElement('span');
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const message = document.createElement('span');
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const button = document.createElement('button');
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const container = document.getElementById('checkContainer');
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container.appendChild(dot);
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container.appendChild(message);
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container.appendChild(button);
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check(destination, container, dot, message, button);
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}
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function createTryAgainButton(destination) {
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const button = document.createElement('button');
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button.textContent = 'Try Again';
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button.onclick = function () {
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window.location.href = destination;
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}
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document.getElementById('checkContainer').appendChild(button);
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}
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function checkDestination() {
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const url = window.location.search;
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const searchParams = new URLSearchParams(url);
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const destination = searchParams.get('destination');
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if (destination) {
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createTryAgainButton(destination);
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}
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}
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checkDestination();
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81
style.css
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81
style.css
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:root {
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/* Support dark mode */
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color-scheme: light dark;
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}
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body {
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margin: 20px;
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padding: 10px;
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}
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footer {
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opacity: 0.6;
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font-size: small;
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display: flex;
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width: 100%;
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justify-content: center;
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}
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.dot {
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width: 15px;
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height: 15px;
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border-radius: 50%;
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display: inline-block;
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margin-right: 5px;
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}
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.dot.green {
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background-color: green;
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}
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.dot.orange {
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background-color: orange;
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}
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.dot.red {
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background-color: red;
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}
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.heart {
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color: #CD001A; /* Cherry red */
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}
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/* Don't let media go offscreen */
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img,
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picture,
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video {
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max-width: 100%;
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padding: 2% 0;
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}
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/* Display the button in the center of small screens such as phones */
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@media screen and (max-device-width: 1000px) {
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#checkContainer {
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display: flex;
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justify-content: center;
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}
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}
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/* Hover animation for URLs */
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a {
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text-decoration: none;
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color: inherit; /* Reset to default text color */
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position: relative;
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}
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a::before {
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content: '';
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position: absolute;
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/* Height of the line */
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bottom: -2px;
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height: 2px;
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left: 0;
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width: 0;
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background-color: orange;
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transition: width 0.3s ease;
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}
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a:hover::before {
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width: 100%;
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}
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