.layui-layer-content div.layui-form-select>div.layui-select-title+ dl,
.select_option_to_layer div.layui-form-select>div.layui-select-title+ dl
{
  visibility: hidden;
}

.layui-layer.layui-option-layer {
  mso-border-shadow: no;
  box-shadow: none;
}