body { max-width: 40em; font-family: sans-serif; } .title { margin-bottom: 0.5em; } h1, h2 { font-weight: normal; margin: 0; } h1 { border-bottom: 1px solid black; } .card { margin-bottom: 1em; } .card.rtOk h2 { color: green; } .card.rtHttpError h2 { color: orange; } .card.rtHttpTeapot h2 { color: blue; } .card.rtFetchError h2 { color: red; } .card.rtTimeout h2 { color: red; }