The Drag-drop and Contentbox editors have a Properties Panel which can be enabled to provide information and some quick editing abilities for the active snippet block. It appears at the base of the editor.
There are two Copy/Paste icons you can use to apply styles to elements. They will copy the styles found in the current Properties settings.
When copying from a span element to another span element, parent styles will also be included in the update, as span tags generally only contain minor changes to styles from the main/parent element.