Dcat-Admin/resources/views/form/markdown.blade.php

<div class="{{$viewClass['form-group']}} {!! !$errors->has($errorKey) ? '' : 'has-error' !!}">

    <label for="{{$id}}" class="{{$viewClass['label']}} control-label">{!! $label !!}</label>

    <div class="{{$viewClass['field']}}">

        @include('admin::form.error')

        <div class="{{$class}}" id="{{$id}}" name="{{$name}}" placeholder="{{ $placeholder }}" {!! $attributes !!} ></div>

        <div id="{{$id}}-template" class="d-none">{{ old($column, $value) }}</div>

        @include('admin::form.help-block')

    </div>
</div>