.blocker {
    position: fixed;
    top: 0; right: 0; bottom: 0; left: 0;
    width: 100%; height: 100%;
    overflow: auto;
    z-index: 15;
    padding: 20px;
    box-sizing: border-box;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.8);
    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: 2;
    max-width: 990px;
    box-sizing: border-box;
    width: 90%;
    background: #fff;
    padding: 50px 30px;
    -webkit-box-shadow: 0 0 10px #000;
    -moz-box-shadow: 0 0 10px #000;
    -o-box-shadow: 0 0 10px #000;
    -ms-box-shadow: 0 0 10px #000;
    box-shadow: 0 0 10px #000;
    text-align: left;
    margin: 40px auto;
}

.modal a.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    display: block;
    width: 15px;
    height: 15px;
    text-indent: -9999px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center center;
    background-image: url("data:image/svg+xml,%3Csvg version='1.1' id='Layer_1' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 96 96' enable-background='new 0 0 96 96' xml:space='preserve'%3E%3Cpolygon fill='%23404040' points='96,14 82,0 48,34 14,0 0,14 34,48 0,82 14,96 48,62 82,96 96,82 62,48 '/%3E%3C/svg%3E");
}

.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;
}

@media( max-width: 568px ) {
    .blocker {
        padding: 0;
    }

    .modal {
        width: 100%;
        max-width: inherit;
        padding: 30px 30px;
        margin: 0;
    }

    .modal a.close-modal {
        top: 10px;
        right: 10px;
    }
}

@-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);
       }
}