Task: - Change the Letter style in the sub-title and font to Arial and font size to 12 with white text with a border line paragraph.
Steps:
click on the A icon at the top of the screen
click on the style option
click on sub title option
go to the font option
go to the font option
click on Arial 
go back 
go back 
click on the font size dropdown button
click on the font size dropdown button
click on the font size dropdown button
go to the text colour option
click on white colour box
go back 
go back 
go back 
go to the paragraph option
click on the third paragraph style
click on the third paragraph style