#hover{
  position:fixed;
  background:#000;
  width:100%;
  height:100%;
  opacity: .6;
  display: none;
}

#popup{
    position: fixed;
    width: 497px;
    height: 390px;
    background: transparent;
    left: 55%;
    top: 30%;
    border-radius: 5px;
    margin-left: -320px;
    text-align: center;
    box-shadow: 0 0 10px 0 #000;
    display: none;
  #tweet{
    color: #4099FF;
  }
}

@media only screen and (max-width: 595px){
    #popup{
        width: 100%;
        left: 0;
        margin-left: 0;
        
    }
    #close {
        right: 1px !important;
    }
    img.img-popup {
        width: 100%;
    }
}

#close{
  position:absolute;
  background:black;
  color:white;
  right:-15px;
  top:-15px;
  border-radius:50%;
  width:30px;
  height:30px;
  line-height:30px;
  text-align:center;
  font-size:8px;
  font-weight:bold;
  font-family:'Arial Black', Arial, sans-serif;
  cursor:pointer;
  box-shadow:0 0 10px 0 #000;
}