Html element <em> not set to italic

Can anybody explain why Ionic has removed the styling from <em>'s so that they no longer make text italic? Is it just because the framework is using some sort of css reset and one should add that back in if they wish?

I solved the problem as follows:

In style.css

em {
font-style: italic;


For example:
<p> <em> Hello IONIC </em> </p>