.header h1, 
.header h2,
#searchform, 
.header ul {
    clear: both;
}

html body.home .articleList {
    margin: 0;
    padding: 0;
}

html body.home .articleList li,
div.cols div {
    float: none;
    width: 98%;
    margin: 0;
}

.main li,
.single div#container article,
.page div#container article {
    width: 95%;
    margin: 2% auto;
    padding: 0;
    float: none;
}