Default margins in Word Online are 1 inch every side, and this is the requirement for MLA and APA style.
Need to print horizontally [landscape] instead of vertically [portrait]? This button allows you to change the page orientation.
If you are making a pamphlet or would like to print on larger paper for notes [legal sized], this button changes the type of paper/paper size.
Need to indent your text for a paragraph or block quote? You can move the indent left or right using these two buttons.
Has your professor asked you to remove the spacing between the lines of text and paragraphs? You can 0 out the spacing for a true double space here - Simply replace the 8 pt with 0.
The *** ellipses after the spacing options lead to a pop up on paragraph options/formatting. Here you can change the "Special" indent to hanging indent for MLA and APA citations, you can 0 out the spacing before and after lines of text, and select Double Line Spacing for a true double spaced document.