Yet - codecogs editor supports Verdana and a couple of colors like \textcolor{blue} or \textcolor{green} like this but it does not support use of different latex packages in common and for example does not support for example cancel...
So what ever you do there are always "buts" - world wide web was never desined to support maths online (for all users, browsers, environments and different needs...). Hopefully we have some fully functional standard open source math type setting system some day (2050?) but today there are just a handful of partly functional workarounds available... 