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background_images.html
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<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8" />
<title>
Lazyload tests
</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style>
ul,
li {
list-style-type: none;
margin: 0;
padding: 0;
}
a {
display: block;
width: 220px;
height: 280px;
background-size: 220px 280px;
}
a.multiple {
width: 440px;
background-repeat: no-repeat;
background-position: left, right;
}
</style>
</head>
<body>
<div id="results1" class="results">
<ul>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+01"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+01"
></a>
</li>
<li>
<a href="#" data-bg="https://via.placeholder.com/220x280?text=Img+02"></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+03"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+03"
></a>
</li>
<li>
<a href="#" data-bg="https://via.placeholder.com/220x280?text=Img+04"></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+05"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+05"
></a>
</li>
<li>
<a href="#" data-bg="https://via.placeholder.com/220x280?text=Img+06"></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+07"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+07"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+08"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+08"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+09"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+09"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+10"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+10"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+11"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+11"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+12"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+12"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+13"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+13"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+14"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+14"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+15"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+15"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+16"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+16"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+17"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+17"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+18"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+18"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+19"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+19"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+20"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+20"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+21"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+21"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+22"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+22"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+23"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+23"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+24"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+24"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+25"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+25"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+26"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+26"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+27"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+27"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+28"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+28"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+29"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+29"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+30"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+30"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+31"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+31"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+32"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+32"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+33"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+33"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+34"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+34"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+35"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+35"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+36"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+36"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+37"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+37"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+38"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+38"
></a>
</li>
<li>
<a
href="#"
data-bg="https://via.placeholder.com/220x280?text=Img+39"
data-bg-hidpi="https://via.placeholder.com/440x560?text=Img+39"
></a>
</li>
</ul>
</div>
<script src="../dist/lazyload.min.js"></script>
<script>
function logElementEvent(eventName, element) {
console.log(
Date.now(),
eventName,
element.getAttribute("data-bg88da112-bg-hidpi=bg")
);
}
var callback_enter = function(element) {
logElementEvent("🔑 ENTERED", element);
};
var callback_exit = function(element) {
logElementEvent("🚪 EXITED", element);
};
var callback_loading = function(element) {
logElementEvent("⌚ LOADING", element);
};
var callback_loaded = function(element) {
logElementEvent("👍 LOADED", element);
};
var callback_error = function(element) {
logElementEvent("💀 ERROR", element);
element.src = "https://via.placeholder.com/220x280/?text=Error+Placeholder";
};
var callback_finish = function() {
logElementEvent("✔️ FINISHED", document.documentElement);
};
LL = new LazyLoad({
elements_selector: "a",
// Assign the callbacks defined above
callback_enter: callback_enter,
callback_exit: callback_exit,
callback_loading: callback_loading,
callback_loaded: callback_loaded,
callback_error: callback_error,
callback_finish: callback_finish
});
</script>
</body>
</html>