He escrito este código para la aplicación meteorológica sobre cómo cambiar el fondo y las propiedades CSS de la página en la que se publican los datos.

 app.post("/", (req, res) => { const query = req.body.cityName; const apiKey = "48a9ebfd3c72f0c53af5c483631e82ad"; const unit = "metric"; const url = "https://api.openweathermap.org/data/2.5/weather?q=" + query + "&appid=" + apiKey + "&units=" + unit; https.get(url, (response) => { console.log(response.statusCode); response.on("data", (d) => { const weatherData = JSON.parse(d); const weatherDescription = weatherData.weather[0].description; const temp = weatherData.main.temp; const windSpeed = weatherData.wind.speed; const pressure = weatherData.main.pressure; const icon = weatherData.weather[0].icon; const imageUrl = "http://openweathermap.org/img/wn/" + icon + "@2x.png"; res.write("<p>Temperature " + query + " is " + temp + " degrees celcius.</p>"); res.write("<p> Weather description - " + weatherDescription + "</p>"); res.write("<p>Wind speed " + windSpeed + " Km/hr </h4>"); res.write("<p>Pressure is " + pressure + " mbar </p>"); res.write("<img src=" + imageUrl + "> "); res.send(); }); }); });