html{font-size:10px}body{font-size:2rem}.todo{height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center}li{list-style:none}button{border-radius:5px;border:solid black 1px;margin-left:8px;font-weight:700}.add{background:#00db00}.remove{background:#ff1818;color:#fff}