StudioPress Header Issue

This may be the easiest question that someone answers today. I am building a site with the Lifestyle Child Theme, and having an issue (I know Thesis). The Header size is 920X150...I tried to change the style sheet to adjust the header size to 920X200. When I made what I thought was the necessary edits all it did was increase the white space between the header image and the menu below. I am hoping this is as ridiculously easy as I imagine it is, I just haven't been able to find anyway.

Here is the code:



/* Header
------------------------------------------------------------ */

#header {
background: url(images/header.png) no-repeat top left;
height: 200px;
margin: 0 auto;
width: 920px;
}

.page-template-landing-php #header {
margin: 20px auto 0;
}

#title-area {
float: left;
overflow: hidden;
padding: 35px 0 0 30px;
width: 400px;
}

.header-full-width #title-area {
padding: 35px 0 0;
}

#title {
font-family: Georgia, Times, 'Times New Roman', serif;
font-size: 48px;
font-variant: small-caps;
line-height: 48px;
text-shadow: #666 1px 1px;
}

.header-full-width #title {
text-align: center;
}

#title a,
#title a:hover {
color: #fff;
text-align: center;
text-decoration: none;
}

#description {
color: #fff;
font-family: Georgia, Times, 'Times New Roman', serif;
font-size: 20px;
font-style: italic;
text-shadow: #666 1px 1px;
}

.header-full-width #description {
text-align: center;
}

#header .widget-area {
float: right;
width: 550px;
}

Thanks for the help