.blocker {
    position: fixed;
    top: 0; right: 0; bottom: 0; left: 0;
    width: 100%; height: 100%;
    overflow: auto;
    z-index: 1001;
    padding: 20px;
    box-sizing: border-box;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.7);
    text-align: center;
  }
  .blocker:before{
    content: "";
    display: inline-block;
    height: 100%;
    vertical-align: middle;
    margin-right: -0.05em;
  }
  .blocker.behind {
    background-color: transparent;
  }
  .modal {
    display: none;
    vertical-align: middle;
    position: relative;
    z-index: 1002;
    max-width: 700px;
    box-sizing: border-box;
    width: 90%;
    background: #fff;  
    text-align: left;
  }
  
  .modal a.close-modal {
    position: absolute;
    top: 0;
    right: -60px;
    display: block;
    width: 60px;
    height: 60px;
    text-indent: -9999px;
    background:#505050 url(/images/pop_close.png) 50% 50% no-repeat;
  }
  
  .modal-spinner {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    padding: 12px 16px;
    border-radius: 5px;
    background-color: #111;
    height: 20px;
  }
  
  .modal-spinner > div {
    border-radius: 100px;
    background-color: #fff;
    height: 20px;
    width: 2px;
    margin: 0 1px;
    display: inline-block;
  
    -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;
    animation: sk-stretchdelay 1.2s infinite ease-in-out;
  }
  
  .modal-spinner .rect2 {
    -webkit-animation-delay: -1.1s;
    animation-delay: -1.1s;
  }
  
  .modal-spinner .rect3 {
    -webkit-animation-delay: -1.0s;
    animation-delay: -1.0s;
  }
  
  .modal-spinner .rect4 {
    -webkit-animation-delay: -0.9s;
    animation-delay: -0.9s;
  }
  
  @-webkit-keyframes sk-stretchdelay {
    0%, 40%, 100% { -webkit-transform: scaleY(0.5) }
    20% { -webkit-transform: scaleY(1.0) }
  }
  
  @keyframes sk-stretchdelay {
    0%, 40%, 100% {
      transform: scaleY(0.5);
      -webkit-transform: scaleY(0.5);
    }  20% {
      transform: scaleY(1.0);
      -webkit-transform: scaleY(1.0);
    }
  }