Yes that will work as well. That’s the “inline” way. Some people use css to do it if they plan to use the same code/class on multiple parts of the site and would rather manage all of them together at once, vs going through each inline code and making changes.
I would add the class and the css myself….you could also add all of the content inside one div and add the text-align: center to it and it would automatically center all of the text without having to add `style-“text-align: center;”‘ ….either way will work, just use whatever your comfortable with.