.ub-korean-audio{display:inline}.ub-speak-btn{background:none;border:none;cursor:pointer;font-size:16px;padding:2px 4px;margin-left:2px;vertical-align:middle;opacity:.7;transition:opacity 0.2s,transform 0.2s}.ub-speak-btn:hover{opacity:1;transform:scale(1.1)}.ub-speak-btn.speaking{animation:ub-pulse 0.5s infinite}@keyframes ub-pulse{0%,100%{opacity:1}50%{opacity:.5}}