jellyfin-web/dashboard-ui/mysync.html

<div id="mySyncActivityPage" data-role="page" class="page libraryPage syncActivityPage mySyncPage noSecondaryNavPage" data-contextname="${TitleSync}" data-require="scripts/syncactivity,scripts/taskbutton,scripts/mysync,paper-spinner,paper-fab">

    <div data-role="content">

        <div class="supporterPromotionContainer" style="display:none;text-align: right;">
            <div class="customSupporterPromotion supporterPromotion inlineSupporterPromotion">
                <paper-button raised class="accent block btnSyncSupporter">
                    <div class="mainText">
                    </div>
                    <div class="btnLearnMore" style="font-weight: normal; margin-top: .25em;">
                        ${ButtonLearnMore}
                    </div>
                </paper-button>
            </div>
        </div>
        <div class="ehsContent" style="clear:both;">
            <br />
            <div class="localSyncStatus hide" style="text-align:right;margin:0 0 1em;">
                <span style="vertical-align: middle;margin-right:.5em;" class="labelSyncStatus"></span>
                <paper-spinner class="syncSpinner" active style="vertical-align: middle;"></paper-spinner>
                <paper-fab class="btnSyncNow mini accent" icon="sync" style="margin-right:.5em;"></paper-fab>
            </div>
            <div class="syncActivity">

            </div>
        </div>
    </div>
</div>