.announcements{margin:40px 0}.announcements h2{font-size:20px;margin-bottom:12px}.announcements ul{list-style:none}.announcements li{padding:8px 0;border-bottom:1px solid #eee}.ad-sidebar{position:fixed;right:20px;top:100px;width:200px}.ad-item{margin-bottom:12px}.ad-item img{width:100%;border-radius:4px}.site-footer{margin-top:60px;padding:24px 0;text-align:center;color:#999;font-size:13px;border-top:1px solid #eee}.site-footer a{color:#999;margin:0 8px}