#dsa_popup{
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(77,77,77,.8);
  z-index: 999;
}
#dsa_popup .content{
  display: block;
  position: absolute;
  top: 20%;
  left: 15%;
  width: 70%;
  background-color: #fff;
  padding: 15px;
  box-sizing: border-box;
}
#dsa_popup .content .header{
  width:100%;
  height: 40px;
}
#dsa_close{
  width: 18px;
  height: 18px;
  float:right;
  background-color: transparent;
  background-image: url('https://img.clb.hu/clb/icon_x_grey.png');  
  background-size: 20px;
  background-repeat: no-repeat;
  background-position: center;
  cursor: pointer;
}