Ghost/ghost/admin/tpl/modal.hbs

<aside class="modal-background"></aside>
<article class="modal{{#if options.type}}-{{options.type}}{{/if}} {{#if options.style}}modal-style-{{options.style}}{{/if}}  {{options.animation}} js-modal">
    <header class="modal-header"><h1>{{content.title}}</h1>{{#if options.close}}<a class="close" href="#"><span class="hidden">Close</span></a>{{/if}}</header>
    <section class="modal-content">
    </section>
    {{#if options.confirm}}
    <footer class="modal-footer">
        <button class="button-add js-button-accept">{{options.confirm.accept.text}}</button>
        <button class="button-delete js-button-reject">{{options.confirm.reject.text}}</button>
    </footer>
    {{/if}}
</article>