.prototip { position: absolute; }
.cloud {
  background:url("cloud.gif") no-repeat scroll right top transparent;
  color:#484E58;
  height:140px;
  text-align:center;
  width:350px;
  
}
.prototip .toolbar a.close {
background:url("close.gif") repeat scroll 0 0 transparent;
border:0 none;
display:block;
float:right;
font-size:0;
height:15px;
line-height:0;
position:relative;
text-decoration:none;
width:15px;
top:12px;
right:12px;
}
.prototip .toolbar a.close:hover { background: transparent url(close_hover.gif); }
.cloud .content_tip {width:50%;height:100%;float:right}
.cloud .parent_tip {width:50%;height:100%;float:left}