Combining Selectors

Selectors can be combined into comma-separated groups.
h1 { color: maroon; }
h2 { color: maroon; }
h3 { color: maroon; }
h4 { color: maroon; }
h5 { color: maroon; }
h6 { color: maroon; }
We combine the selectors so that a single declaration applies to multiple selectors.
h1, h2, h3, h4, h5, h6 { color: maroon; }