a.open-modal {
 
}

*, div {
  box-sizing: border-box;
}

.modal-wrap:before {
  content: "";
  background: rgba(0, 0, 0, 0.6);
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index:100;
  transition:var(--trans);
}
.closed {
  display: none;
  
}

.modal {
  position: fixed;
  top: 20%;
  bottom: 10%;
  left: 0px;
  right: 0px;
  margin: 0 auto;
  display: block;
  background: #fff;
  padding: 20px;
  width: 100%;
  max-width: 1000px;
  height:auto; 
  max-height:100%; 
  overflow-y:scroll;
  z-index:100;
}
.modal .modal-close {
  font-family: "Helvetica",Arial,sans-serif;
  font-size: 24px;
  font-weight: bold;
  color: #CCC;
  display: block;
  position: absolute;
  top: 15px;
  right: 15px;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  text-decoration: none;
  -webkit-transition: all 0.1s ease-in-out;
          transition: all 0.1s ease-in-out;
}
.modal .modal-close:hover {
  color: #666;
}



@media screen and (max-width: 660px) {
.modal {
 
  padding: 20px;
 
  max-height:100%; 
  overflow-y:scroll;
  width: auto;
  
  z-index:100;
}
}