Abstand von Artikeln

<div id="content">
        <div id="blog">
        <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
            <h3><?php the_date(); ?></h3>
            <h2><?php the_title(); ?></h2>
            <?php the_content(); ?>
            <div class="postnav">
                <div class="left"><?php next_posts_link('&laquo; &Auml;ltere Artikel') ?></div>
                <div class="right"><?php previous_posts_link('Neuere Artikel &raquo;') ?></div>
            </div>
        <?php endwhile; endif; ?>
          </div>

#titlebanner {
    width: 820px;
    height: 58px;
    position: absolute;
    top: 0px;
    background: url(gfx/title.jpg);
    z-index: 99;
}


#titlebanner a {
    width: 820px;
    height: 58px;
    display: block;
}


#content {
    background: #F3F3F3 url(gfx/xyz.jpg) top left no-repeat;
    width: 723px;
    padding: 33px 46px 33px 51px;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    color: black;
    font-size: 11px;
    line-height: 18px;
    border-bottom: 4px solid white;
}


#blog {
    width: 480px;
    float: left;
    padding: 36px 0 0 0;
}


#blog a {
    border-left: 2px solid #DD2A43;
    padding: 0 0 0 2px;
    text-decoration: underline;
}


h2, h3, p {
    margin: 0;
    padding: 0;    
}


h2 {
    font-size: 14px;
    text-transform: uppercase;
    font-weight: normal;
    padding: 0 0 18px 0;
}


h3 {
    font-size: 11px;
    color: #666666;
    font-weight: normal;
    margin: 0 0 0 0;
}


p {
    margin: 0 0 5px 0;
}


.left {
    float: left;
}


.right {
    float: right;
}


.postnav {
    margin: 25px 0 0 0;
}


.left a, .right a {
    color: black !important;
    font-weight: bold;
    text-decoration: none;
    border-left: none !important;
    padding: 0 0 0 0 !important;
}


.left a:hover, .right a:hover {
    text-decoration: underline;
}


#clear {
    clear: both;
}