Change text color/style/size using csv imports?

[Blehs]

I recently came across a solution where you can add <br> within a csv file to add line breaks. I would like to know what html tags can I use in order to change text color, style, size and so on in the "description" field.

 

For eg. I want to have this in my product description;

 

Product Features

 

Where the word "Product Features" uses the <h1> header and has the color red. I would like to know what tags (or whatever) that I need to type into excel in order to have prestashop display that text the way I want it. I've tried using <h1>Product Features</h1> in my csv file but prestashop seems to ignore that entire thing altogether.