Zentrierung der Startseite, nicht die eigentlichen Beiträge selbst

1.0 Reset
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html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
    border: 0;
    font-family: inherit;
    font-size: 100%;
    font-style: inherit;
    font-weight: inherit;
    margin: 0;
    outline: 0;
    padding: 0;
    vertical-align: baseline;
text-align: center;
}


html {
    font-size: 62.5%; /* Corrects text resizing oddly in IE6/7 when body font-size is set using em units http://clagnut.com/blog/348/#c790 */
    overflow-y: scroll; /* Keeps page centered in all browsers regardless of content height */
    -webkit-text-size-adjust: 100%; /* Prevents iOS text size adjust after orientation change, without disabling user zoom */
    -ms-text-size-adjust:     100%; /* www.456bereastreet.com/archive/201012/controlling_text_size_in_safari_for_ios_without_disabling_user_zoom/ */
    box-sizing: border-box; /* Apply a natural box layout model to the document; see http://www.paulirish.com/2012/box-sizing-border-box-ftw/ */
}
*,
*:before,
*:after { /* Inherit box-sizing to make it easier to change the property for components that leverage other behavior; see http://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/ */
    box-sizing: inherit;
}


body {
    background: #fff; /* Fallback for when there is no custom background color defined. */
}


article,
aside,
details,
figcaption,
figure,
footer,
header,
main,
nav,
section {
    display: block;
}


ol,
ul {
    list-style: none;
}


table { /* tables still need 'cellspacing="0"' in the markup */
    border-collapse: separate;
    border-spacing: 0;
}


caption,
th,
td {
    font-weight: normal;
    text-align: left;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
    content: "";
}


blockquote,
q {
    quotes: "" "";
}


a:focus {
    outline: thin dotted;
}


a:hover,
a:active {
    outline: 0;
}


a img {
    border: 0;
}