OK so the font-weight is changing, text align is working, font family is working but the font size won't change at ALL! I want to increase it but it won't change size.

Here is my code.

HTML code:
HTML Code:
<div id="topbanner"><h1>Test Test Test</h1></div>
CSS code:
Code:
#topbanner {
	background-color:#0099ff;
	width:100%;
	height:500px;
	margin-top:10px;
	}
	
#topbanner h1 {
	font-weight: bold;
	text-align:center;
	color:#FFF;
	font-family:"Times New Roman", Times, serif;
	font-size:40px;}