Is there a way I can prevent "fontSize" from being included into the generated css file
I was wondering if it was possible to omit or prevent the fontSize / font-size being included in the generated css file. A workaround is for me to set this value as "revert" in my package.json but this isn't perfect. Is it possible to make this optional or does such functionality already exist?


```javascript
"svgtofont": {
    "svgicons2svgfont": {
      "fontHeight": 9000,
      "normalize": true,
      "centerHorizontally": true
    },
    "css": {
      "fontSize": "revert"
    },
    "classNamePrefix": "mike-font",
    "fontName": "mike-icon-font",
    "outSVGReact": false
  },
``` 