SOURCE

<div class="cssload-main">
	<span class="cssload-spinner"></span>
</div>

.cssload-main {
  margin-top:120px;
	position: absolute;
	left: 50%;
	transform: translate(-50%, -50%);
		-o-transform: translate(-50%, -50%);
		-ms-transform: translate(-50%, -50%);
		-webkit-transform: translate(-50%, -50%);
		-moz-transform: translate(-50%, -50%);
}

.cssload-spinner {
	position: relative;
}
.cssload-spinner:before, .cssload-spinner:after {
	content: '';
	position: relative;
	display: block;
}
.cssload-spinner:before {
	animation: cssload-spinner 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-o-animation: cssload-spinner 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-ms-animation: cssload-spinner 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-webkit-animation: cssload-spinner 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-moz-animation: cssload-spinner 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
	width: 58px;
	height: 58px;
	border: 1px solid rgb(0,0,0);
}
.cssload-spinner:after {
	animation: shadow 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-o-animation: shadow 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-ms-animation: shadow 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-webkit-animation: shadow 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
		-moz-animation: shadow 2.88s cubic-bezier(0.75, 0, 0.5, 1) infinite normal;
	bottom: -29px;
	height: 19px;
	border-radius: 50%;
	border: 1px solid rgb(215,215,215);
}




@keyframes cssload-spinner {
	50% {
		border-radius: 50%;
		transform: scale(0.5) rotate(360deg);
	}
	100% {
		transform: scale(1) rotate(720deg);
	}
}

@-o-keyframes cssload-spinner {
	50% {
		border-radius: 50%;
		-o-transform: scale(0.5) rotate(360deg);
	}
	100% {
		-o-transform: scale(1) rotate(720deg);
	}
}

@-ms-keyframes cssload-spinner {
	50% {
		border-radius: 50%;
		-ms-transform: scale(0.5) rotate(360deg);
	}
	100% {
		-ms-transform: scale(1) rotate(720deg);
	}
}

@-webkit-keyframes cssload-spinner {
	50% {
		border-radius: 50%;
		-webkit-transform: scale(0.5) rotate(360deg);
	}
	100% {
		-webkit-transform: scale(1) rotate(720deg);
	}
}

@-moz-keyframes cssload-spinner {
	50% {
		border-radius: 50%;
		-moz-transform: scale(0.5) rotate(360deg);
	}
	100% {
		-moz-transform: scale(1) rotate(720deg);
	}
}

@keyframes shadow {
	50% {
		transform: scale(0.5);
		border-color: rgb(228,228,228);
	}
}

@-o-keyframes shadow {
	50% {
		-o-transform: scale(0.5);
		border-color: rgb(228,228,228);
	}
}

@-ms-keyframes shadow {
	50% {
		-ms-transform: scale(0.5);
		border-color: rgb(228,228,228);
	}
}

@-webkit-keyframes shadow {
	50% {
		-webkit-transform: scale(0.5);
		border-color: rgb(228,228,228);
	}
}

@-moz-keyframes shadow {
	50% {
		-moz-transform: scale(0.5);
		border-color: rgb(228,228,228);
	}
}