You don't even need to know HTML to do a pop up configuration like that. In the configure pop up window, choose Display: A custom attribute display. Then simply type the text in the Custom Attribute Display box and format it the way you want. To pull specific attribute information into the pop up, click the + next to the font size and click on the field name that you want.
Best,
Katie
“The goal is not simply to ‘work hard, play hard.’ The goal is to make our work and our play indistinguishable.”
- Simon Sinek