Ungwollter Abstand zwischen Container und Header

@charset "UTF-8";
/* CSS danielsfotos.com */


* html {
    margin: 0;
    padding: 0;
    }


body {
    background: #333 url(../images/background.png) top left repeat;
    color: white;
    }

/* CONTAINER */


div#container {
    width: 600px;
    height: auto;
    margin: 100px auto auto auto;
    }    

/* NAVIGATION TOP */


div#navigation {
    width: 600px;
    height: 50px;
    margin: 0;
    background: url(../images/navigation_background.png) no-repeat;
    font: "Myriad Pro", Arial, sans-serif;
    font-size: 25px;
    }

div#navigation ul {
    list-style-type: none;
    }

div#navigation li {
    float: left;
    position: relative;
    line-height: 50px;
    text-align: left;
    }


div#navigation a {
    width: 100px;
    display: block;
    background: transparent;
    text-decoration: none;
    color: white;
    top: 50%;
    left: 50%;
    }    


div#navigation a:hover {
    background: transparent;
    color: #CCC;
    text-decoration: none;
    top: 50%;
    left: 50%;
    }


/* HEADER */


div#header {
    width: 600px;
    height: 150px;
    background: url(../images/header/header_1.jpg) no-repeat;
    margin: 0 auto 0 auto;
    }


/* CONTENT */


div#content {
    width: 600px;
    height: auto;
    margin: 0 auto 0 auto;
    background: url(../images/content_background.png) repeat-y;
    }


/* FOOTER */


div#footer {
    position: absolute;
    bottom: 0;
    }