document.querySelector('[title="Page Title"]');
<p title="1st item with title">Paragraph with 1st title.</p>
<p title="2nd item with title">Paragraph with 2nd title.</p>
<button onclick="getElement()">Get element with title attribute</button>
<script>
function getElement() {
let element = document.querySelector("[title]");
element.style.background = "lightgreen";
}
</script>