*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:#f5f5f7;color:#1d1d1f;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::selection{background:#007aff;color:#fff}input::placeholder{color:#86868b}button{font-family:inherit}