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; } code { font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace; } h1, h2, h3 { font-weight: 400; color: #1f2f3d; } .title { font-size: 28px; text-align: center; } .app { width: 100%; max-width: 1200px; margin: 0 auto; }