select *; spacefill 23%; wireframe 0.15; color cpk-ball and stick
select *; spacefill 0%; wireframe 0.15; color cpk-wireframe
select *; spacefill only; color cpk-spacefill
~<h5>Butane is a four carbon hydrocarbon the the formula C<sub>4</sub>H<sub>10</sub>. </h5>
