CSS
#preloader {
position: absolute;
background: #000;
width: 100%;
height: 100%;
z-index: 100500;
}
#loader {
position: absolute;
border: 6px #fff solid;
width: 150px;
height: 150px;
top: 50%;
left: 50%;
margin: -75px 0 0 -75px;
animation: spin 4s infinite ease;
}
#loader:after,
#loader:before {
content: "";
position: absolute;
top: 50%;
left: 50%;
}
#loader:after {
border: 6px #fff solid;
width: 100px;
height: 100px;
margin: -56px 0 0 -56px;
animation: spin 4s infinite ease;
}
#loader:before {
border: 6px #fff solid;
width: 50px;
height: 50px;
margin: -31px 0 0 -31px;
animation: spin 4s infinite ease;
}
@keyframes spin {
from {
transform: rotate(0deg);
}
50% {
border-radius: 50%;
}
to {
transform: rotate(360deg);
}
}
