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index.html
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<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<title>HackUML</title>
<meta http-equiv="Refresh" content="1; url=https://github.com/orgs/HackUML/discussions">
<meta name="viewport" content="width=device-width,initial-scale=1">
<style>
body, html {
height: 100%;
margin: 0;
display: grid;
place-items: center;
background: #000;
}
.loader {
--s: 25px;
--g :5px;
width: calc(3*(1.353*var(--s) + var(--g)));
display: grid;
justify-items: end;
aspect-ratio: 3;
overflow: hidden;
--_m: linear-gradient(90deg,#0000,#000 15px calc(100% - 15px),#0000);
-webkit-mask: var(--_m);
mask: var(--_m);
position: absolute;
top:0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
}
.loader:before {
content: "";
width: 200%;
background:
linear-gradient(90deg,#ff1818 50%,#0000 0),
conic-gradient(from -90deg at var(--s) calc(0.353*var(--s)),
#fff 135deg,#666 0 270deg,#aaa 0);
background-blend-mode: multiply;
--_m:
linear-gradient(to bottom right,
#0000 calc(0.25*var(--s)),#000 0 calc(100% - calc(0.25*var(--s)) - 1.414*var(--g)),#0000 0),
conic-gradient(from -90deg at right var(--g) bottom var(--g),#000 90deg,#0000 0);
-webkit-mask: var(--_m);
mask: var(--_m);
background-size: calc(100%/3) 100%, calc(100%/6) 100%;
-webkit-mask-size: calc(100%/6) 100%;
mask-size: calc(100%/6) 100%;
-webkit-mask-composite: source-in;
mask-composite: intersect;
animation: l10 1s infinite linear;
}
@keyframes l10 {
to {transform:translate(calc(100%/3))}
}
</style>
<script src=""></script>
<body>
<div class="loader"></div>
</body>
</html>