svg
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 56 56" role="img" aria-label="Vortex"><title>Vortex</title><desc>Outer ring sweeps clockwise while the inner ring counter-rotates.</desc><defs><circle id="b" r="2.4" fill="#ffffff" opacity="0.07"/><circle id="l" r="3.1"/></defs><style>.l{fill:#ffffff;opacity:0;animation:icon-51-k 2400ms linear infinite both;}@keyframes icon-51-k{0%{opacity:0;}4%{opacity:1;}26%{opacity:0.08;}100%{opacity:0;}}@media (prefers-reduced-motion:reduce){.l{animation:none;opacity:0.45;}}.d00,.d11,.d22{animation-delay:0ms;}.d01{animation-delay:150ms;}.d02,.d21{animation-delay:300ms;}.d03{animation-delay:450ms;}.d04,.d31{animation-delay:600ms;}.d10{animation-delay:2250ms;}.d12,.d20{animation-delay:2100ms;}.d13,.d40{animation-delay:1800ms;}.d14{animation-delay:750ms;}.d23,.d42{animation-delay:1500ms;}.d24,.d32{animation-delay:900ms;}.d30{animation-delay:1950ms;}.d33,.d44{animation-delay:1200ms;}.d34{animation-delay:1050ms;}.d41{animation-delay:1650ms;}.d43{animation-delay:1350ms;}</style><use href="#b" x="6" y="6"/><use href="#b" x="17" y="6"/><use href="#b" x="28" y="6"/><use href="#b" x="39" y="6"/><use href="#b" x="50" y="6"/><use href="#b" x="6" y="17"/><use href="#b" x="17" y="17"/><use href="#b" x="28" y="17"/><use href="#b" x="39" y="17"/><use href="#b" x="50" y="17"/><use href="#b" x="6" y="28"/><use href="#b" x="17" y="28"/><use href="#b" x="28" y="28"/><use href="#b" x="39" y="28"/><use href="#b" x="50" y="28"/><use href="#b" x="6" y="39"/><use href="#b" x="17" y="39"/><use href="#b" x="28" y="39"/><use href="#b" x="39" y="39"/><use href="#b" x="50" y="39"/><use href="#b" x="6" y="50"/><use href="#b" x="17" y="50"/><use href="#b" x="28" y="50"/><use href="#b" x="39" y="50"/><use href="#b" x="50" y="50"/><use class="l d00" href="#l" x="6" y="6"/><use class="l d01" href="#l" x="17" y="6"/><use class="l d02" href="#l" x="28" y="6"/><use class="l d03" href="#l" x="39" y="6"/><use class="l d04" href="#l" x="50" y="6"/><use class="l d10" href="#l" x="6" y="17"/><use class="l d11" href="#l" x="17" y="17"/><use class="l d12" href="#l" x="28" y="17"/><use class="l d13" href="#l" x="39" y="17"/><use class="l d14" href="#l" x="50" y="17"/><use class="l d20" href="#l" x="6" y="28"/><use class="l d21" href="#l" x="17" y="28"/><use class="l d22" href="#l" x="28" y="28"/><use class="l d23" href="#l" x="39" y="28"/><use class="l d24" href="#l" x="50" y="28"/><use class="l d30" href="#l" x="6" y="39"/><use class="l d31" href="#l" x="17" y="39"/><use class="l d32" href="#l" x="28" y="39"/><use class="l d33" href="#l" x="39" y="39"/><use class="l d34" href="#l" x="50" y="39"/><use class="l d40" href="#l" x="6" y="50"/><use class="l d41" href="#l" x="17" y="50"/><use class="l d42" href="#l" x="28" y="50"/><use class="l d43" href="#l" x="39" y="50"/><use class="l d44" href="#l" x="50" y="50"/></svg>