<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2>
<div class="preloader">
<span><i class="lnr lnr-sun"></i></span>
</div>
</div>
</div>
.preloader {
background-color: #ffffff;
bottom: 0;
height: 100%;
position: fixed;
top: 0;
width: 100%;
z-index: 99999999;
}
.preloader span {
background: rgb(72, 44, 191);
background: -webkit-linear-gradient(45deg, #3ACCE1 0%, #E31351 100%);
background: -o-linear-gradient(45deg, #3ACCE1 0%, #E31351 100%);
background: linear-gradient(45deg, #3ACCE1 0%, #E31351 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#482cbf', endColorstr='#6ac6f0', GradientType=1);
border-radius: 100%;
height: 60px;
width: 60px;
line-height: 60px;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
text-align: center;
color: #ffffff;
font-size: 24px;
margin: auto;
-webkit-animation: mymove 1.5s infinite linear;
animation: mymove 1.5s infinite linear;
}
@-webkit-keyframes mymove {
0 {
-webkit-box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
}
25% {
-webkit-box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
}
50% {
-webkit-box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 20px rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 20px rgba(94, 136, 252, 0.6);
}
75% {
-webkit-box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
}
100% {
-webkit-box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
}
}
@keyframes mymove {
0 {
-webkit-box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
}
25% {
-webkit-box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
}
50% {
-webkit-box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 20px rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 20px rgba(94, 136, 252, 0.6);
}
75% {
-webkit-box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 10px rgba(94, 136, 252, 0.6), 0 0 0 10px rgba(94, 136, 252, 0.6);
}
100% {
-webkit-box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
box-shadow: 0 0 0 0 rgba(94, 136, 252, 0.6), 0 0 0 0 rgba(94, 136, 252, 0.6);
}
}
