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Cover image for Coding the Wikipedia's Tooltip!

Coding the Wikipedia's Tooltip!

ziratsu profile image Ustariz Enzo ・2 min read

Recreating UI of popular websites is fun, today we are going to code the Wikipedia's tooltip !

If you prefer to watch the video version it's right here :

But first ...
What is a tooltip ?

A Tooltip is usually some context displayed by hovering a link, a button or an icon.


Let's do it, step by step.

1. Create the tooltip and the links.

The links :

  <span class="tooltip"><a href="#">Tooltip1</a></span>
  <span class="tooltip"><a href="#">Tooltip2</a></span>
  <span class="tooltip"><a href="#">Tooltip3</a></span>
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The tooltip :

<div class="tooltip-container">
        Lorem ipsum, dolor sit amet consectetur adipisicing elit. Libero tenetur non laborum dolorem laboriosam quo quibusdam assumenda dolores eveniet. Ipsum?
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Style it, with position absolute, to make it easyer to place.

.tooltip-container {
  width: 425px;
  min-height: 200px;
  padding: 15px;
  font-size: 25px;
  background: white;
  box-shadow: 0 30px 90px -20px rgba(0,0,0,0.3);
  position: absolute;
  z-index: 100;
  display: none;
  opacity: 0;
.fade-in {
  display: block;
  animation: fade 0.2s linear forwards;
@keyframes fade {
  0% {
    opacity: 0;
  100% {
    opacity: 1;
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Notice the lovely animation, to display from none to block and then animate from opacity 0 to 1 ! ♥

2 Animate with JavaScript.

Take all the links, and the tooltip container.

const tooltips= Array.from(document.querySelectorAll(".tooltip"));
const tooltipContainer = document.querySelector(".tooltip-container");
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Listen to mouseenter and mouseout on every link and place the tooltip where the mouse is.

tooltips.forEach((tooltip) => {
  tooltip.addEventListener("mouseenter", (e) => {

    tooltipContainer.classList.add("fade-in"); = `${e.pageX}px`; = `${e.pageY}px`;


  tooltip.addEventListener("mouseout", () => {
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Hurray, we made it !
If you want to add custom text for each link to the tooltip, I'm showing it in the video, I don't want to make too long article.

Source code, with all the shiny CSS is right here :

Come and take a look at my brand new Youtube channel :
Be the pioneer that follows me uh ? 😎

See you next time for some quick and polished tutorials !

Discussion (3)

Editor guide
sohomdatta1 profile image
Sohom Datta

This is the source code for the actual pop-ups feature on Wikipedia. :)

ziratsu profile image
Ustariz Enzo Author

Yep !
But wanted to show how to do it without external library :)

rahxuls profile image