.site {

margin: 0 auto;

}
.full-width .site-content .has-post-thumbnail .entry-header, 
.full-width .site-content .hentry.has-post-thumbnail:first-child {
    margin-top: 0px;
    margin-left: 0px;
}
.site-content .entry-header,
.site-content .entry-content,
.site-content .entry-summary,
.site-content .entry-meta,
.page-content,
.post-navigation,
.image-navigation,
.comments-area {
max-width: 100%;
}