How do I use two different font styles in one text block?

For example, if I wanted the majority of the text block to use the font Ogg, but I wanted certain words in that same block to be typed in the font Ogg Italics, how would I do that? 

Hi. Use a Markdown Block >> paste this syntax (just an example)

Jaguar shark! So tell me - does it really exist? <span style="font-family:monospace">Must go faster</span>. Yes, Yes, without the oops!