You can use built-in WYSIWYG editor to change the text style:
Or you can change the source code:
This is italic font-style
This is bold font-style
This is your underlined text
This text is deleted
This is an important marked text
This is an important blue text
This is an important yellow text
This is an important red text
Gray paragraph style
Bordered paragraph style
Spaced paragraph style
Uppercased paragraph style
Left aligned text
Center aligned text
Right aligned text