Am I allowed to use CSS with inline elements such as <span>, <strong>, and <em>?
The element is the only inline element that CSS should be applied to, and only the following properties should be used:
* background-color
* color
* font-family
* font-style
* font-variant
* font-weight
* letter-spacing
* line-height
* text-decoration
* text-indent
* text-transform