webapp/src/components/blocksEditor/devmain.scss

h1,
h2,
h3,
p {
    margin: 5px;
}

.App-header {
    padding: 20px 100px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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;
}