public/subjects/bring-it-to-life-dom

Bring it to life

Resources

We provide you with some content to get started smoothly, check it out!

• Video DOM JS - getElementById
• Video DOM JS - Set an element's inline style
• Video DOM JS - classList: add & remove
• Memo DOM JS

Instructions

Still there? Well done! But hold on, here begins the serious part... In order to control your creation, you're going to plug its brain: JavaScript.

You're going to close the left eye of your entity. To do so, you have to target the eye-left HTML element by its id thanks to the getElementById method. Then, set the style of your eye-left to set its background color to "black". We also need to modify its shape ; for that we are going to add a new class to it. First, define this new class in your style block:

.eye-closed {
  height: 4px;
  padding: 0 5px;
  border-radius: 10px;
}

In the JS code, add the freshly-created class eye-closed to the classList of your eye-left element.

Reload the page - it's alive! Your JS brain has control and orders your HTML/CSS body to close one eye.

Code examples

Get a HTML element by its id & set its inline style:

const myDiv = document.getElementById('my-div')
myDiv.style.color = 'green'

Expected output

This is what you should see in the browser:

Notions

• getElementById
• classList / add()
• Setting style with JS