Just via HTML you cannot prioritize what will load first on your web page.
The page loads from the Top to Down approach, which first <HEAD> and its content, then <BODY> and its content.
If you like to render a page according to your need you need to use JavaScript.
Below sample code below does the same.
window.onload = function(){
const div1 = `<div id="div1">This div will load first please</div>`;
setTimeout(() => {
console.log("DIV1 load after 3 second");
document.getElementById("the-div-1").innerHTML = div1;
}, 3000);
const imgs = `
<img src="https://picsum.photos/id/237/200/300.jpg" title="Other large images">
<br />
<img src="https://picsum.photos/id/238/200/300.jpg" title="Other large images">
<br />
<img src="https://picsum.photos/id/237/200/300.jpg" title="Other large images">
<br />
<img src="https://picsum.photos/id/240/200/300.jpg" title="Other large images">
<br />
<img src="https://picsum.photos/id/241/200/300.jpg" title="Other large images">
<br />
`;
setTimeout(() => {
console.log("Images load after 6 second");
document.getElementById("image-div").innerHTML = imgs;
}, 6000);
}
<html>
<body>
<div>
<span>Anything in HTML file will load from top-down apporach.</span>
</div>
<div id="the-div-1"></div>
<div id="image-div"></div>
</body>
</html>
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
