You can easily edit both internal and external rules that you have applied to a document.
When you edit a CSS style sheet that controls the text in your document, you instantly reformat all of the text controlled by that CSS style sheet. Edits to an external style sheet affect all the documents linked to it.
You can set an external editor to use for editing style sheets.
Double-click a property in the Summary for Selection pane to display the CSS Rule Definition dialog box, and then make your changes.
Select a property in the Summary for Selection pane, and then edit the property in the Properties pane below.
Select a rule in the Rules pane, and then edit the rule’s properties in the Properties pane below.
Double-click a rule in the All Rules pane to display the CSS Rule Definition dialog box, and then make your changes.
Select a rule in the All Rules pane, and then edit the rule’s properties in the Properties pane below.
Select a rule in the All Rules pane, and then click the Edit Style button in the lower-right corner of the CSS Styles panel.