#overlay {
            position: fixed;
            opacity: 0;
            top: 0;
            bottom: 0;
            background: rgba(0,0,0,0.5);
            width: 100%;
            height: 100%;
            z-index: -1;
            visibility: hidden;
            transition: all 1s ease;
        }
        #popup {
            position: fixed;
            top: 40%;
            left: 50%;
            background: #fff;                        
            width: 500px;
            height: 600px;
            margin-left: -250px; 
            margin-top: -250px; 
            z-index: -1;
            visibility: hidden;
            border-radius: 10px;
            
        }
        @media screen and (max-width: 600px) {
          #popup {           
            top: 0;
            left:0;                               
            width: 100%;
            height: 100%;           
            margin-left: 0; 
            margin-top: 0; 
        }
        
        }
        @media screen and (max-width: 820px) and (min-width: 600px) {
          #popup {           
            width: 500px;
            height: 550px;
            margin-left: 0; 
            margin-top: 0; 
            top:0;
            left:0;
            transform: translate(-50%, -50%);
        }
        
        }
        #popupclose {
            float: right;
            padding: 10px;
            cursor: pointer;
        }
        .popupcontent {
            padding: 10px;
        }
        #button {
            cursor: pointer;
        }
@-webkit-keyframes pop-swirl {
  0% {
    transform: scale(0) rotate(360deg);
  }

  60% {
    transform: scale(0.8) rotate(-10deg);
  }

  100% {
    transform: scale(1) rotate(0deg);
  }
}
@-moz-keyframes pop-swirl {
  0% {
    transform: scale(0) rotate(360deg);
  }

  60% {
    transform: scale(0.8) rotate(-10deg);
  }

  100% {
    transform: scale(1) rotate(0deg);
  }
}
@-ms-keyframes pop-swirl {
  0% {
    transform: scale(0) rotate(360deg);
  }

  60% {
    transform: scale(0.8) rotate(-10deg);
  }

  100% {
    transform: scale(1) rotate(0deg);
  }
}
@-o-keyframes pop-swirl {
  0% {
    transform: scale(0) rotate(360deg);
  }

  60% {
    transform: scale(0.8) rotate(-10deg);
  }

  100% {
    transform: scale(1) rotate(0deg);
  }
}
@keyframes pop-swirl {
  0% {
    transform: scale(0) rotate(360deg);
  }

  60% {
    transform: scale(0.8) rotate(-10deg);
  }

  100% {
    transform: scale(1) rotate(0deg);
  }
}
@-webkit-keyframes anvil {
  0% {
    transform: scale(5) rotate(0);
    opacity: 0;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0);
  }

  50% {
    transform: scale(1) rotate(-0.2deg);
    opacity: 1;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0.5);
  }

  75% {
    transform: scale(1) rotate(0.2deg);
    opacity: 1;
    box-shadow: 0 0 250px rgba(241, 241, 241, 0.5);
  }

  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
    box-shadow: 0 0 500px rgba(241, 241, 241, 0);
  }
}
@-moz-keyframes anvil {
  0% {
    transform: scale(5) rotate(0);
    opacity: 0;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0);
  }

  50% {
    transform: scale(1) rotate(-0.2deg);
    opacity: 1;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0.5);
  }

  75% {
    transform: scale(1) rotate(0.2deg);
    opacity: 1;
    box-shadow: 0 0 250px rgba(241, 241, 241, 0.5);
  }

  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
    box-shadow: 0 0 500px rgba(241, 241, 241, 0);
  }
}
@-ms-keyframes anvil {
  0% {
    transform: scale(5) rotate(0);
    opacity: 0;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0);
  }

  50% {
    transform: scale(1) rotate(-0.2deg);
    opacity: 1;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0.5);
  }

  75% {
    transform: scale(1) rotate(0.2deg);
    opacity: 1;
    box-shadow: 0 0 250px rgba(241, 241, 241, 0.5);
  }

  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
    box-shadow: 0 0 500px rgba(241, 241, 241, 0);
  }
}
@-o-keyframes anvil {
  0% {
    transform: scale(5) rotate(0);
    opacity: 0;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0);
  }

  50% {
    transform: scale(1) rotate(-0.2deg);
    opacity: 1;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0.5);
  }

  75% {
    transform: scale(1) rotate(0.2deg);
    opacity: 1;
    box-shadow: 0 0 250px rgba(241, 241, 241, 0.5);
  }

  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
    box-shadow: 0 0 500px rgba(241, 241, 241, 0);
  }
}
@keyframes anvil {
  0% {
    transform: scale(5) rotate(0);
    opacity: 0;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0);
  }

  50% {
    transform: scale(1) rotate(-0.2deg);
    opacity: 1;
    box-shadow: 0 0 0 rgba(241, 241, 241, 0.5);
  }

  75% {
    transform: scale(1) rotate(0.2deg);
    opacity: 1;
    box-shadow: 0 0 250px rgba(241, 241, 241, 0.5);
  }

  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
    box-shadow: 0 0 500px rgba(241, 241, 241, 0);
  }
}
#popup[data-pop="slide-down"] {
  top: -50%;
  transition: all .5s ease-in-out;
}
#popup[data-pop="slide-down"].show {
  visibility: visible;
  z-index: 200;
  opacity: 1;
  top: 50%;
}
#popup[data-pop="slide-down"].show ~ #overlay {
  opacity: 1;
  visibility: visible;
  z-index: 100;
}
#popup[data-pop="pop-in"] {
  transform: scale(0);
  transition: all .5s ease-in-out;
}
#popup[data-pop="pop-in"].show {
  transform: scale(1);
  visibility: visible;
  z-index: 200;
  opacity: 1;
}
#popup[data-pop="pop-in"].show ~ #overlay {
  opacity: 1;
  visibility: visible;
  z-index: 100;
}
#popup[data-pop="pop-swirl"] {
  transform: scale(0);
  transition: all .5s ease-in-out;
}
#popup[data-pop="pop-swirl"].show {
  -webkit-animation: pop-swirl 1s cubic-bezier(0.38, 0.1, 0.36, 0.9) forwards;
  visibility: visible;
  z-index: 200;
  opacity: 1;
}
#popup[data-pop="pop-swirl"].show ~ #overlay {
  opacity: 1;
  visibility: visible;
  z-index: 100;
}
#popup[data-pop="anvil"] {
  transition: all .5s ease-in-out;
}
#popup[data-pop="anvil"].show {
  -webkit-animation: anvil 1s cubic-bezier(0.38, 0.1, 0.36, 0.9) forwards;
  visibility: visible;
  z-index: 200;
  opacity: 1;
}
#popup[data-pop="anvil"].show ~ #overlay {
  opacity: 1;
  visibility: visible;
  z-index: 100;
}