div.chat_div {
  background: #FFFFFF;
  border: 1px solid #C3C3C3;
  width: 440px;
  padding: 5px;
  height: 500px;
  z-index: 10;
  overflow: auto;
  scrollbar-face-color: #C0C0C0;
  scrollbar-shadow-color: #FFFFFF;
  scrollbar-highlight-color: #FFFFFF;
  scrollbar-3dlight-color: #C0C0C0;
  scrollbar-darkshadow-color: #C0C0C0;
  scrollbar-track-color: #C0C0C0;
  scrollbar-arrow-color: #FFFFFF;
}

#block_smiles {
  display: block;
  width: 400px;
  background: #FFFFFF;
}

#smiles {
  display: none;
  position: absolute;
  width: 450px;
  height: 150px;
  background: #EFEFEF;
  border: 1px solid #BEBEBE;
}
#smiles img{padding:2px;}