how do you do "classes"
Classes are explained in this exercise, or is this the execise you are stuck at?
Create a html element (paragraph, div, span) whatever you like, and add a class to it, for example if i have a paragraph:
<p>i am a paragraph</p>`
you can add a class to the opening html (paragraph in this case) tag, like many other attibutes:
<p class="classname">i am a paragraph</p>