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lozad.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title> Plug-in JQuery para lazy load </title>
<script src="complementar/lozad.min.js"></script>
<style>
*{
padding: 0px;
margin: 0px;
box-sizing: border-box;
}
.container{
width: 800px;
margin: auto;
display: flex;
flex-direction: column;
overflow: hidden;
}
.image-container{
display: block;
width: 100%;
height: 100vh;
}
.image,
.image-container img{
display: block;
width: 100%;
height: 100vh;
-o-object-fit: cover;
object-fit: cover;
}
</style>
</head>
<body>
<div class="container">
<img class="image" src="imgs/1.jpg" alt="img" />
<!-- Exemplo com <img> -->
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/2.jpg" alt="img" />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/3.jpg" alt="img" />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/4.jpg" alt="img" />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/5.jpg" alt="img" />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/6.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/7.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/8.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/9.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/10.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/11.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/12.jpg" alt="..." />
<img class="image lozad" data-placeholder-background="blue" data-src="imgs/13.jpg" alt="..." />
<!-- Exemplo com Picture -->
<picture class="image-container lozad" data-iesrc="imgs/14.jpg">
<source srcset="imgs/14.webp" type="image/webp" alt="...">
<source srcset="imgs/14.jpg" type="image/jpg" alt="...">
</picture>
</div>
<script>
// const observer = lozad('.lazy', {
// marginRoot: "-200px",
// threshold: 0.5,
// loaded: function(el) {
// el.classList.add('loaded');
// }
// });
const observer = lozad();
observer.observe();
</script>
</body>
</html>