Python101/colors.html at master · wojtekidd/Python101 · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Colors</title>
    <script>
    document.addEventListener("DOMContentLoaded", function() {
        document.querySelector('#red').onclick = function() {
            document.querySelector('h1').style.color = 'red';
        }
        document.querySelector('#black').onclick = function() {
            document.querySelector('h1').style.color = 'black';
        }
        document.querySelector('#green').onclick = function() {
            document.querySelector('h1').style.color = 'green';
        }
    })
    </script>
</head>
<body>
<h1 style="color: blue">This will change when you click one of the buttons below</h1>
<button id="red">Red</button>
<button id="black">Black</button>
<button id="green">Green</button>
</body>
</html>