svg
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 56 56" role="img" aria-label="Pyramid"><title>Pyramid</title><desc>A triangle grows from the bottom up, one row at a time.</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-13-k 2400ms cubic-bezier(0.25, 1, 0.5, 1) infinite both;}@keyframes icon-13-k{0%{opacity:0;}10%{opacity:1;}55%{opacity:0.85;}100%{opacity:0;}}@media (prefers-reduced-motion:reduce){.l{animation:none;opacity:0.45;}}.d02{animation-delay:1200ms;}.d12{animation-delay:900ms;}.d21,.d22,.d23{animation-delay:600ms;}.d31,.d32,.d33{animation-delay:300ms;}.d40,.d41,.d42,.d43,.d44{animation-delay:0ms;}</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 d02" href="#l" x="28" y="6"/><use class="l d12" href="#l" x="28" y="17"/><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 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 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>