Not smooth transition with custom fonts

When I am using script with custom fonts, transition is not smooth. Have a look at http://files.justinkase.se/austinfoodworks/template/

[schlosser]

Hello!

So in order to calculate the width of a new element, the library creates a dummy element that has the same class as the wrapper. Are you styling the sub element using classes?

Also, I can't find the substituteteacher.js library in your link. Is it still up there? It would be easier to debug if I could see your progress