Basic Template

Simple template to start your design with

                    
    (function (win) {
        "use strict";
        // Initialize the viewer appending automatically the viewer element to the body         
        win.TheViewer = new FM_Viewer();                 
    })(window);
                          

    /* Default CSS*/
    @keyframes spinner-border {
        to {
            transform: rotate(360deg);
        }
    }

    .fm-viewer {
        background-color: black;
        position: fixed;
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
        z-index: 10000;
        transition: all 0.5s;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .fm-viewer.off-screen {
        transform: translateY(-100%);
        opacity: 0;
    }

    .fm-viewer .viewer-content {
        transition: all 0.4s;
    }

    .fm-viewer .viewer-content.fade-in,
    .fm-viewer .viewer-content.fade-out,
    .fm-viewer .viewer-content.fade-right,
    .fm-viewer .viewer-content.fade-left {
        opacity: 0;
        transition: all 0.4s;
    }

    .fm-viewer .viewer-content.fade-in,
    .fm-viewer .viewer-content.fade-right {
        transform: translateX(200px);
    }

    .fm-viewer .viewer-content.fade-out,
    .fm-viewer .viewer-content.fade-left {
        transform: translateX(-200px);
    }

    .fm-viewer img.viewer-content {
        max-width: 80%;
        max-height: 80%;
    }

    .fm-viewer iframe.viewer-content {
        width: 90%;
        height: 80%;
        border: 0;
        display: block;
    }

    .fm-viewer video.viewer-content {
        width: 90%;
        height: auto;
    }

    .fm-viewer.loading::after {
        content: "";
        display: block;
        position: absolute;
        width: 2.3rem;
        height: 2.3rem;
        top: calc(50% - 1.1rem);
        left: calc(50% - 1.1rem);
        border: 6px solid white;
        border-right-color: transparent;
        border-radius: 50%;
        animation: 0.7s linear infinite spinner-border;
    }

    .fm-viewer .btn {
        display: inline-block;
        font-weight: 400;
        line-height: 1.5;
        color: #212529;
        text-align: center;
        text-decoration: none;
        vertical-align: middle;
        cursor: pointer;
        -webkit-user-select: none;
        -moz-user-select: none;
        user-select: none;
        background-color: transparent;
        border: 1px solid transparent;
        padding: 0.375rem 0.75rem;
        font-size: 1rem;
        border-radius: 0.25rem;
        transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    }

    @media (prefers-reduced-motion: reduce) {
        .fm-viewer .btn {
            transition: none;
        }
    }

    .fm-viewer .btn:hover {
        color: #212529;
    }

    .fm-viewer .btn:focus {
        outline: 0;
        box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    }

    .fm-viewer .btn:disabled,
    .fm-viewer .btn.disabled {
        pointer-events: none;
        opacity: 0.65;
    }

    .fm-viewer .btn-dark {
        background: transparent;
        color: #f6f6f6;
        padding-left: 12px;
        padding-right: 12px;
        border: 0;
    }

    .fm-viewer .btn-dark:hover {
        background: #444;
    }

    .fm-viewer .btn-warning {
        color: #000;
        background-color: #ffc107;
        border-color: #ffc107;
    }

    .fm-viewer .btn-warning:hover {
        color: #000;
        background-color: #ffca2c;
        border-color: #ffc720;
    }

    .fm-viewer .btn-warning:focus {
        color: #000;
        background-color: #ffca2c;
        border-color: #ffc720;
        box-shadow: 0 0 0 0.25rem rgba(217, 164, 6, 0.5);
    }

    .fm-viewer .btn-warning:active {
        color: #000;
        background-color: #ffcd39;
        border-color: #ffc720;
    }

    .fm-viewer .btn-warning:disabled,
    .fm-viewer .btn-warning.disabled {
        color: #000;
        background-color: #ffc107;
        border-color: #ffc107;
    }

    .fm-viewer .text-white {
        color: white !important;
    }

    .fm-viewer .text-center {
        text-align: center !important;
    }

    .fm-viewer .d-none {
        display: none !important;
    }

    .fm-viewer .fm-navbar.navbar,
    .fm-viewer .fm-navbar {
        left: 0;
        top: 0;
        width: 100%;
        z-index: 1000;
        position: absolute;
        justify-content: space-between;
        align-items: center;
    }

    .fm-viewer .fm-navbar.navbar .viewer-title,
    .fm-viewer .fm-navbar .viewer-title {
        margin: 0;
        padding: 0 0.75rem;
        color: white;
    }

    .fm-viewer .fm-navbar.navbar .navbar-nav,
    .fm-viewer .fm-navbar .navbar-nav {
        display: flex;
        flex-flow: row nowrap;
    }

    .fm-viewer .fm-navbar {
        display: flex;
        flex-flow: row nowrap;
        justify-content: space-between;
        padding-top: 0.25rem;
        padding-bottom: 0.25rem;
    }

    .fm-viewer .fm-navbar .fm-navbar-nav {
        list-style: none;
        display: flex;
        flex-flow: row nowrap;
        padding: 0;
        margin: 0;
    }

    .fm-viewer .fm-navbar .fm-navbar-nav svg {
        display: block;
        height: 1.2rem;
    }

    .fm-viewer .fm-navbar .fm-navbar-nav .btn {
        padding: 0.75rem;
        border-radius: 0;
        margin: 0 0.25rem;
    }