*{margin:0;padding:0;box-sizing:border-box}html{font-size:18px}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{height:100%}.placeholder-view{display:flex;align-items:center;justify-content:center;min-height:400px}