First, read the English article below.

The top, bottom, left, and right margins should each be 1 in (2.5 cm) wide. For most word processing programs, you can change the margins by heading into the "Page Layout" settings, usually located under a "File" menu. There should be a "Margins" heading in the dialog box. From there, change each margin to the appropriate size. From the first page on, your entire paper should be double-spaced. Note that you do not need to include any extra space at the end of a paragraph. For most word processing programs, you can change the spacing by going into the “Page Layout” settings, typically accessed from a “File” menu.” There should be a “Line Spacing” heading in the dialog box. Under that heading, select “2.0” spacing. The preferred font and size for MLA papers is 12-point Times New Roman. If you opt to use another font instead of Times New Roman, choose a font that is simple, easy to read, and not excessively large. A running header will appear on each page in the same spot. It should include your last name and the page number of each page, and should be positioned in the upper right corner of the page. Access the "Header and Footer" tool in your word processor, often found under the "View" menu. Type your last name and hit the page number icon in the options box to automatically insert the current page number on its corresponding page. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Căn lề 2,5 cm. Tạo khoảng cách đôi giữa các dòng. Sử dụng phông chữ 12. Tạo dòng chữ chạy đầu trang.