Word automatically aligns text to the left margin with a ragged right margin, which is the most common style. To change the alignment, highlight the text to be changed and click the left, center, right or justified buttons, which are located next to the B, I and U buttons on the Word toolbar.
To type text with a different alignment, click the appropriate alignment button before you start typing. Justification means both left and right margins are straight like a newspaper column.
The alignment buttons are used to arrange graphic elements as well as text.