Keep getting error "Uncaught TypeError: Cannot read properties of null (reading 'classList')"
I'm making a js-actuated modal but I keep getting the error "Uncaught TypeError: Cannot read properties of null (reading 'classList')". This is my code:
How can I fix this? Thanks
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
<title>Custom Modal</title>
</head>
<body>
<button onclick="openModal()">Open Modal</button>
<p class="modal-content hidden">This is a modal</p>
<script>
const modalcontent = document.querySelector(".modal-content");
function openModal() {
modalcontent.classList.replace("hidden", "visible");
}
</script>
</body>
</html>How can I fix this? Thanks
