styles.css

.arrow_box {position:relative;	 min-height:1.6em; margin: 38px 0}
.arrow {background: #ddd; width:7em; position:absolute}
.arrow:after {	top: 50%;	border: solid transparent;	content: "";height: 0;width: 0;	position: absolute;left:7em;border-color: rgba(221, 221, 221, 0);border-left-color: #ddd;border-width: 18px;margin-top: -18px; float:left}
.icon-book::before{content: "\f02d";padding-left: 10px;padding-right: 4px;}
.icon-video-camera::before{content: "\f03d";padding-left: 10px;padding-right: 4px;}
.pagename {left:9em; position:absolute;padding-top:1px}