        </div>

        <div id="panelPreview" class="flex one vertical layout">
            <fm-preview id="preview" class="flex"></fm-preview>
        </div>

        <div id="loadingWrapper" hidden$="[[!loading]]" class="fit horizontal layout">
            <span id="loading" class="flex self-center">
                <span></span>
                <span></span>
                <span></span>
                <strong>字体生成中，请稍后</strong>
            </span>
        </div>

    </template>
</do