holiday-api/templates/dialogs/add-holiday.gohtml

<dialog class="card" id="create-card">
    <h3 class="card-title">Dodaj praznik</h3>
    <form method="post" action="/admin/holidays">
        <section class="form-field">
            <label for="country">Država:</label>
            <select id="country" required name="country">
                {{range $entry := .Countries}}
                    <option value="{{$entry.IsoName}}">{{$entry.Name}}</option>
                {{end}}
            </select>
        </section>
        <section class="form-field">
            <label for="name">Ime:</label>
            <input required id="name" name="name" type="text">
        </section>
        <section class="form-field">
            <label for="description">Opis:</label>
            <textarea id="description" name="description"></textarea>
        </section>
        <section class="form-field">
            <label for="date">Datum:</label>
            <input required id="date" name="date" type="date">
        </section>
        <section class="form-field">
            <label class="checkbox"><span>Državni praznik</span><input id="state_holiday" value="true" name="state_holiday" type="checkbox"></label>
        </section>
        <section class="form-field">
            <label class="checkbox"><span>Religiozni praznik</span><input id="religious_holiday" value="true" name="religious_holiday" type="checkbox"></label>
        </section>
        <section class="actions">
            <button class="primary" type="submit">Dodaj</button>
            <button class="secondary" type="button" onclick="closeDialog('#create-card')">Odustani</button>
        </section>
    </form>
</dialog>