dmitriygnatenko-v2/internal/templates/error.html

<section class="page">
    <div class="container">
        <div class="row">
            <div class="page-content col-md-12">
                <div class="not_found">
                    <a href="/" class="blog-link-to-main">&larr; на главную</a>
                    <br><br>
                    <h1>{{ .code }}</h1>
                    <h2>{{ .text }}</h2>
                    <br><br>
                </div>
            </div>
        </div>
    </div>
</section>