html,body{height:100%;margin:0}body{flex-direction:column;display:flex}main{flex:1}footer{order:2}
.avatar div{display:flex}.breath-brightness{background:linear-gradient(135deg,#cebe10,#e7b516);border-radius:50%;animation:2.5s ease-in-out infinite breathBrightness}@keyframes breathBrightness{0%,to{filter:brightness(.8)}50%{filter:brightness(1.2)}}