@foreach($list as $elem)
    @if($elem->id_sender == $user_1->id)
        <blockquote class="bottomBordered">
            @if($elem->file)
                <a href="{{ url('/messages/'.$elem->file) }}" target="_blank"><button type="button" class="btn btn-sm btn-success" title="Pobierz"><i class="fas fa-download"></i></button></a>
            @endif
            <p>{{ $elem->message }}</p>
            <small><b>{{ $user_1->nickname }}</b> <cite>{{ substr($elem->created_at, 0, 16) }}</cite></small>
        </blockquote>
    @else
        <blockquote class="quote-secondary rightside bottomBordered">
            @if($elem->file)
                <a href="{{ url('/messages/'.$elem->file) }}" target="_blank"><button type="button" class="btn btn-sm btn-success" title="Pobierz"><i class="fas fa-download"></i></button></a>
            @endif
            <p>{{ $elem->message }}</p>
            <small><b>{{ $user_2->nickname }}</b> <cite>{{ substr($elem->created_at, 0, 16) }}</cite></small>
        </blockquote>
    @endif
@endforeach