css 3 keyframes無限回転360度を実現

<div class="rotate">div>

.rotate{
	-webkit-animation: circle 20s infinite linear;
	-moz-animation: circle 20s infinite linear;
	-ms-animation: circle 20s infinite linear;
	-o-animation: circle 20s infinite linear;
	animation: circle 20s infinite linear;
}

@-webkit-keyframes circle {
	0% {
		-webkit-transform: rotate(0deg);
		-moz-transform: rotate(0deg);
		-ms-transform: rotate(0deg);
		-o-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		-moz-transform: rotate(360deg);
		-ms-transform: rotate(360deg);
		-o-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}
@-moz-keyframes circle {
	0% {
		-webkit-transform: rotate(0deg);
		-moz-transform: rotate(0deg);
		-ms-transform: rotate(0deg);
		-o-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		-moz-transform: rotate(360deg);
		-ms-transform: rotate(360deg);
		-o-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}
@-ms-keyframes circle {
	0% {
		-webkit-transform: rotate(0deg);
		-moz-transform: rotate(0deg);
		-ms-transform: rotate(0deg);
		-o-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		-moz-transform: rotate(360deg);
		-ms-transform: rotate(360deg);
		-o-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}
@-o-keyframes circle {
	0% {
		-webkit-transform: rotate(0deg);
		-moz-transform: rotate(0deg);
		-ms-transform: rotate(0deg);
		-o-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		-moz-transform: rotate(360deg);
		-ms-transform: rotate(360deg);
		-o-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}
@keyframes circle {
	0% {
		-webkit-transform: rotate(0deg);
		-moz-transform: rotate(0deg);
		-ms-transform: rotate(0deg);
		-o-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		-moz-transform: rotate(360deg);
		-ms-transform: rotate(360deg);
		-o-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}