Luup request font

Hello,
I use a Vera Edge, and via a Luup request I can see the temperature of the thermostat.
eg: http://xxxx.xxxx.org:3480/data_request?id=variableget&DeviceNum=xxx&serviceId=urn:upnp-org:serviceId:TemperatureSensor1&Variable=CurrentTemperature.
I can see the result on my smartphone, but the numbers are very small.
Is there a way to see the result in a larger font.
(html, script …)
Thanks.

Michel