.bd-placeholder-img {
            font-size: 1.125rem;
            text-anchor: middle;
            -webkit-user-select: none;
            -moz-user-select: none;
            user-select: none;
        }

        @media (min-width: 768px) {
            .bd-placeholder-img-lg {
                font-size: 3.5rem;
            }
        }

        /* Absolute Center Spinner */
        .loading {
            position: fixed;
            z-index: 999;
            height: 2em;
            width: 2em;
            overflow: show;
            margin: auto;
            top: 0;
            left: 0;
            bottom: 0;
            right: 0;
        }

        /* Transparent Overlay */
        .loading:before {
            content: '';
            display: block;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(rgba(20, 20, 20, 0.774), rgba(0, 0, 0, 0.753));

            background: -webkit-radial-gradient(rgba(20, 20, 20, 0.712), rgba(0, 0, 0, 0.788));
        }

        /* :not(:required) hides these rules from IE9 and below */
        .loading:not(:required) {
            /* hide "loading..." text */
            font: 0/0 a;
            color: transparent;
            text-shadow: none;
            background-color: transparent;
            border: 0;
        }

        .loading:not(:required):after {
            content: '';
            display: block;
            font-size: 10px;
            width: 1em;
            height: 1em;
            margin-top: -0.5em;
            -webkit-animation: spinner 150ms infinite linear;
            -moz-animation: spinner 150ms infinite linear;
            -ms-animation: spinner 150ms infinite linear;
            -o-animation: spinner 150ms infinite linear;
            animation: spinner 150ms infinite linear;
            border-radius: 0.5em;
            -webkit-box-shadow: #ff8c00 1.5em 0 0 0, #ff8c00 1.1em 1.1em 0 0, #ff8c00 0 1.5em 0 0, #ff8c00 -1.1em 1.1em 0 0, #ff8c00 -1.5em 0 0 0, #ff8c00 -1.1em -1.1em 0 0, #ff8c00 0 -1.5em 0 0, #ff8c00 1.1em -1.1em 0 0;
            box-shadow: #ff8c00 1.5em 0 0 0, #ff8c00 1.1em 1.1em 0 0, #ff8c00 0 1.5em 0 0, #ff8c00 -1.1em 1.1em 0 0, #ff8c00 -1.5em 0 0 0, #ff8c00 -1.1em -1.1em 0 0, #ff8c00 0 -1.5em 0 0, #ff8c00 1.1em -1.1em 0 0;
        }

        /* Animation */

        @-webkit-keyframes spinner {
            0% {
                -webkit-transform: rotate(0deg);
                -moz-transform: rotate(0deg);
                -ms-transform: rotate(0deg);
                -o-transform: rotate(0deg);
                transform: rotate(0deg);
            }

            100% {
                -webkit-transform: rotate(360deg);
                -moz-transform: rotate(360deg);
                -ms-transform: rotate(360deg);
                -o-transform: rotate(360deg);
                transform: rotate(360deg);
            }
        }

        @-moz-keyframes spinner {
            0% {
                -webkit-transform: rotate(0deg);
                -moz-transform: rotate(0deg);
                -ms-transform: rotate(0deg);
                -o-transform: rotate(0deg);
                transform: rotate(0deg);
            }

            100% {
                -webkit-transform: rotate(360deg);
                -moz-transform: rotate(360deg);
                -ms-transform: rotate(360deg);
                -o-transform: rotate(360deg);
                transform: rotate(360deg);
            }
        }

        @-o-keyframes spinner {
            0% {
                -webkit-transform: rotate(0deg);
                -moz-transform: rotate(0deg);
                -ms-transform: rotate(0deg);
                -o-transform: rotate(0deg);
                transform: rotate(0deg);
            }

            100% {
                -webkit-transform: rotate(360deg);
                -moz-transform: rotate(360deg);
                -ms-transform: rotate(360deg);
                -o-transform: rotate(360deg);
                transform: rotate(360deg);
            }
        }

        @keyframes spinner {
            0% {
                -webkit-transform: rotate(0deg);
                -moz-transform: rotate(0deg);
                -ms-transform: rotate(0deg);
                -o-transform: rotate(0deg);
                transform: rotate(0deg);
            }

            100% {
                -webkit-transform: rotate(360deg);
                -moz-transform: rotate(360deg);
                -ms-transform: rotate(360deg);
                -o-transform: rotate(360deg);
                transform: rotate(360deg);
            }
        }

        .unselectable {
            -webkit-user-select: none;
            -webkit-touch-callout: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }