If you paste content from a Word Doc(etc) into the "Content" section, you may be pasting the formatting as well. This could mean that the text would not match your website font, size and color scheme
One option we normally use is to "Paste" the copied content (Word Doc/etc) into the "Description or Summary" box. Then "Cut" that content and "Paste" it into the "Content" section
Always review your work by pressing the green "View" button on the top right after you save