[fastpages] changing font color and greek letters

Hi, does anyone know how to change font color in a markdown Jupyter cell? e.g. I used #### <font color=#4d6eae >Observations:</font> to color the text “Observations” with hex#4d6eae. It works fine in local jupyter notebook. But when I publish the blog it appears as:


also any idea how to format greek letters? \sigma^2 in notebook works but in the blog it just appears as $ \ s i gma ^ 2 and not the greek letter sigma


did you set use_math: true in config.yml?

Also to change styles you must provide your own css as described in the docs https://github.com/fastai/fastpages#customizing-fastpages

I suggest reading the README carefully