.layerBG {
  background:transparent;
  filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000,endColorstr=#99000000);
  zoom: 1;
}

.articleAnswer ul li:before, .articleAnswer ul li .before{
  position: absolute;
  top: 7px;
  margin: 0 0 0 -19px;
  vertical-align: middle;
  display: inline-block;
  width: 10px;
  height: 10px;
  content: "";
  line-height: 1.5;
}