spinning-circles.svg

<!-- By Sam Herbert (@sherb), for everyone. More @ http://goo.gl/7AJzbL -->
<svg width="24" height="24" viewBox="0 0 58 58" xmlns="http://www.w3.org/2000/svg">
    <g fill="none" fill-rule="evenodd">
        <g transform="translate(2 1)" stroke="#FFF" stroke-width="1.5">
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                     begin="0s" dur="1.3s"
                     values="1;0;0;0;0;0;0;0" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
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                <animate attributeName="fill-opacity"
                     begin="0s" dur="1.3s"
                     values="0;1;0;0;0;0;0;0" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
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                <animate attributeName="fill-opacity"
                     begin="0s" dur="1.3s"
                     values="0;0;1;0;0;0;0;0" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
            <circle cx="27" cy="49.125" r="5" fill-opacity="0" fill="#008000">
                <animate attributeName="fill-opacity"
                     begin="0s" dur="1.3s"
                     values="0;0;0;1;0;0;0;0" calcMode="linear"
                     repeatCount="indefinite" />
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                <animate attributeName="fill-opacity"
                     begin="0s" dur="1.3s"
                     values="0;0;0;0;1;0;0;0" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
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                <animate attributeName="fill-opacity"
                     begin="0s" dur="1.3s"
                     values="0;0;0;0;0;1;0;0" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
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                <animate attributeName="fill-opacity"
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                     values="0;0;0;0;0;0;1;0" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
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                <animate attributeName="fill-opacity"
                     begin="0s" dur="1.3s"
                     values="0;0;0;0;0;0;0;1" calcMode="linear"
                     repeatCount="indefinite" />
            </circle>
        </g>
    </g>
</svg>