《前端》loading案例一

界面一（彩色）

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<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>loading</title>
<script src="//i2.wp.com/cdn.staticfile.org/jquery/1.10.2/jquery.min.js">
</script>
<style>
#loading {
background: #f3815e;
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
z-index: 999;
}

.loadingImage {
position: relative;
width: 30px;
height: 30px;
background: #2e98df;
border-radius: 50px;
animation: loadingImage 1.5s infinite linear;
}

.loadingImage::after {
position: absolute;
width: 50px;
height: 50px;
border-top: 10px solid #b160d1;
border-bottom: 10px solid #b160d1;
border-left: 10px solid transparent;
border-right: 10px solid transparent;
border-radius: 50px;
content: '';
top: -20px;
left: -20px;
animation: loadingImage_after 1.5s infinite linear;
}

@keyframes loadingImage {
0% {
transform: rotate(0deg);
}
50% {
transform: rotate(180deg);
background: #2ecc71;
}
100% {
transform: rotate(360deg);
}
}

@keyframes loadingImage_after {
0% {
border-top: 10px solid #b160d1;
border-bottom: 10px solid #b160d1;
}
50% {
border-top: 10px solid #2e98df;
border-bottom: 10px solid #2e98df;
}
100% {
border-top: 10px solid #b160d1;
border-bottom: 10px solid #b160d1;
}
}
</style>
</head>

<body>
<div id="loading">
<div class="loadingImage"></div>
</div>
<h1>你好</h1>

<script>
$("#loading").fadeOut(400);
</script>
</body>

</html>