<h1 class="title">Hello!</h1>
<script>
function getTitle() {
const title = document.querySelector(".title")
alert(`Found h1 with class ${title.className}``)
}
</script>
<button onclick="getTitle()">Get element by class</button>
<div>
<a href="https://www.bytesized.xyz/javascript-get-element-by-class">Read the post -></a>
</div>
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This Pen doesn't use any external JavaScript resources.