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JavaScript Interacting with the DOM Responding to Events Adding an Event Listener

What am I doing wrong?

I did everything just like the question asked me to do. I cant figure out what im doing wrong. I am asked set variable warning back ground color to red and its still say im wrong.

app.js
var warning = document.getElementById("warning");
var button = document.getElementById("makeItRed");

button.addEventListener('click', () => {
warning.style.background-color = "red";
})
index.html
<!DOCTYPE html>
<html>
    <head>
        <title>Adding an Event Listener</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <div id="warning">
            Warning: My background should be red!
        </div>
        <button id="makeItRed">Make It Red!</button>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Madushan Perera
Madushan Perera
7,273 Points

Hello Keytron,

I think you should use warning.style.backgroundColor = "red"; instead of this warning.style.background-color = "red";

Thank you kindly.