div.baloon {
   font-size: 11px;
   color: #900;
   position: absolute;
   padding-left: 5px;
   background: url("http://sunakawaerika.net/common/js/check/img/balloon.gif") no-repeat top left;
   z-index: 1;
   /*filter: progid:DXImageTransform.Microsoft.chroma(color=#ffffff);*/
   /*filter: alpha(style=0, opacity=80);*/
   filter: progid:DXImageTransform.Microsoft.shadow(color=#999999, direction=135, strength=3);
}

div.baloon a {
   color: blue;
   text-decoration: none;
   padding: 2px;
   margin-right: 2px;
}

div.baloon a:hover {
   background-color: #eef;
}

div.baloon div {
   background: url("http://sunakawaerika.net/common/js/check/img/balloon_right.gif") no-repeat top right;
   padding: 7px 7px 14px 0;
   white-space: nowrap;
   /*filter: progid:DXImageTransform.Microsoft.chroma(color=#ffffff);*/
   /*filter: alpha(style=0, opacity=80);*/
   filter: progid:DXImageTransform.Microsoft.shadow(color=#999999, direction=135, strength=3);
}