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