In addition to line height, you can also use margin and padding to control the spacing.
For example, if you add “padding: 5px 0 0 5px;“ to your h1{ in your CSS file, it will add a 5px cushion on top and right of the text.
Adding “margin:0 5px 0 0;” will push your text 5px from the left.
It goes top, right, bottom, left. Here's more reading you can look at:
http://www.w3.org/TR/CSS2/box.html