Removing empty space at top

I'm making a Twine game; the passage needs to fill the entire page because I need it to look like various websites. I expanded the height and width of the tw-story element to 100%, but there's a bar of empty space at the top. How do I get rid of it? (Also, is there a way to remove the fade transition between passages?)

Here's my stylesheet so far:

body {
	background: #FFF;
}

tw-sidebar {
	display: none;
}

tw-story {
	width: 100%;
	height: 100%;
}

tw-passage {
	font-family: Monospace;
}

div.menuBar {
	width: 100%;
	height: 40px;
	background: #AAAAAA;
}