.tool{text-align:center;padding-top:3px;padding-bottom:3px;}
#tooltip{font-family:Trebuchet MS;font-size:12px;text-align:center;line-height:1.5;color:white;background-color:black;border-radius:5px;-webkit-border-radius:5px;-moz-border-radius:5px;box-shadow:0 3px 5px rgba(0, 0, 0, .3);-webkit-box-shadow:0 3px 5px rgba(0, 0, 0, .3);-moz-box-shadow:0 3px 5px rgba(0, 0, 0, .3);position:absolute;z-index:100;padding:10px;}
#tooltip:after{width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-top-color:#333;border-top:10px solid black;content:'';position:absolute;left:50%;bottom:-10px;margin-left:-10px;}
#tooltip.top:after{border-top-color:transparent;border-bottom-color:#333;border-bottom:10px solid black;top:-20px;bottom:auto;}
#tooltip.left:after{left:10px;margin:0;}
#tooltip.right:after{right:10px;left:auto;margin:0;}