Word+-+Default+spacing+between+paragraphs+-+Auto+setting

You may notice that paragraphs have space between them by default. If you check the paragraph settings 'auto' will be configured. 'Auto' means that for paragraphs with the same style, there will be an automatic default spacing between paragraphs. This comes out to be 12 points. If you want paragraphs to have no extra spacing or more, change the value from 'auto' to 0 or greater than 12 points.