I am new to responsive design and now re-making a template to make it more responsive. This involves redefining many fixed width and fonts as context-dependent percentage (% or em) instead of pixels in css.
So I am wondering how does all these new added calculations affect the rendering time of pages, regarding that now most elements values needs to be calculated, and mobile processors which are the target devices are far less powerful than a typical Desktop cpu. Will the effect be sensible on most devices? If yes, how much? I appreciate if you also could refer me to the relevant benchmarks/studies. Thanks