body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}.app{justify-content:space-around;padding:20px;display:flex}h1{border-bottom:1px solid #ccc;margin-bottom:20px;padding-bottom:10px;font-size:24px}h2{font-size:18px}button{cursor:pointer;border:1px solid #ccc;border-radius:5px;margin:5px;padding:10px 15px}input{border:1px solid #ccc;border-radius:5px;margin:5px;padding:10px}