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richardhundt/iframe_loader_example.html

Created September 27, 2016 21:40
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iframe_loader_example.html
<html>
<style>
.loader {
font-size: 10px;
margin: 50px auto;
text-indent: -9999em;
width: 11em;
height: 11em;
border-radius: 50%;
background: #ffffff;
background: -moz-linear-gradient(left, #ffffff 10%, rgba(255, 255, 255, 0) 42%);
background: -webkit-linear-gradient(left, #ffffff 10%, rgba(255, 255, 255, 0) 42%);
background: -o-linear-gradient(left, #ffffff 10%, rgba(255, 255, 255, 0) 42%);
background: -ms-linear-gradient(left, #ffffff 10%, rgba(255, 255, 255, 0) 42%);
background: linear-gradient(to right, #ffffff 10%, rgba(255, 255, 255, 0) 42%);
position: relative;
-webkit-animation: load3 1.4s infinite linear;
animation: load3 1.4s infinite linear;
-webkit-transform: translateZ(0);
-ms-transform: translateZ(0);
transform: translateZ(0);
}
.loader:before {
width: 50%;
height: 50%;
background: #ffffff;
border-radius: 100% 0 0 0;
position: absolute;
top: 0;
left: 0;
content: '';
}
.loader:after {
background: #0dc5c1;
width: 75%;
height: 75%;
border-radius: 50%;
content: '';
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
@-webkit-keyframes load3 {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
@keyframes load3 {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
</style>
<body>
<div style="padding: 20px; background: darkcyan">
<div id="spinner" class="loader">loading...</div>
</div>
</body>
<script>
window.addEventListener("load", function(e) {
console.log("loaded")
var iframe = document.createElement("iframe")
iframe.style.display = 'none'
document.body.appendChild(iframe)
iframe.addEventListener("load", function(e) {
console.log("iframe loaded")
document.getElementById("spinner").style.display = 'none'
iframe.style.display = ''
})
iframe.setAttribute("src", "iframe.html")
})
</script>
</html>
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