body{text-align:center;background:#344;margin:0;padding:0;font-size: calc(12px + (18 - 14) * ((100vw - 300px) / 900));color:#ede;}
.top-container{display:block;position:relative;width:94%;padding:3% 3% 30px 3%;max-width:560px;margin:0 auto;font-size:16px;line-height:28px}
.hau{display:inline-block;height:3em;width:4em;margin:0;padding:0;background-color:#c4d638;border-radius: 50%;cursor: pointer;border: none;text-align: center;text-decoration: none;}