create-tsreact/src/genAppCss.ts

TS/React Scaffolder using esbuild compiler/bundler

export default function genAppCss() {
    const tpl = `
#app {
    padding: 15px;
    margin-right: auto;
    margin-left: auto;
    border: 1px solid black;
    max-width: 50%;
}
`;

    return tpl;
}