tag HTML
Take this ul for example:
Look here: http://www.w3schools.com/tags/tag_p.asp
The p element automatically creates some space before and after itself. The space is automatically applied by the browser, or you can specify it in a style sheet.
you could remove the extra space by using css
p {
margin: 0px;
padding: 0px;
}
or use the element which has no default margins and is an inline element.