.smart-voice-demo{height:100%;left:0;position:absolute;top:0;width:100%}#sv-demo-btn .PlayBtn{border:3px solid;border-radius:50%;height:40px;width:40px}#sv-demo-btn .PlayBtn svg{height:80%;margin:auto;width:80%}.smart-voice-demo{cursor:pointer;z-index:10}#sv-demo-btn{transition:filter .2s ease}#sv-demo-btn:hover{filter:contrast(1.3) brightness(.85)}