#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center}.circleBox .circle{position:absolute;width:30px;height:30px;background:#dbdbde;border-radius:50%}.circleBox .circle.leftCircle{top:-15px;left:-15px}.circleBox .circle.bottomCircle{bottom:-15px;left:-15px}.circleBox .circle.rightCircle{top:-15px;right:-15px}.circleBox .circle.topCircle{bottom:-15px;right:-15px}.clearfix{clear:both;zoom:1}*{margin:0;padding:0}li{list-style:none}body{background:#dbdbde}a,a:hover{text-decoration:none}.returnBox{position:fixed;z-index:999;top:70%;display:none;cursor:pointer}.returnBox a{display:block}