kontor/kontor-gin/templates/html/login.tmpl

<!doctype html>
<html lang="de-DE">
{{ template "header.tmpl" . }}

  <body>
    <div class="header"></div>
    {{ template "navbar.tmpl" . }}

    <div class="content">
        <form action="/auth/login" method="post">

            <div class="container" style="border: 1px solid lightgray; border-radius: 3px; padding: 15px;">

                {{ if .content }}
                <div class="notification is-danger">{{ .content }}</div>
                {{ end}}

                <div class="field">
                    <label class="label">Username</label>
                    <div class="control">
                        <input class="input" type="text" placeholder="Enter Username" name="username" required/>
                    </div>
                </div>
                <div class="field">
                    <label class="label">Passwort</label>
                    <div class="control">
                        <input class="input" type="password" placeholder="Enter Password" name="password" required/>
                    </div>
                </div>

                <div class="field">
                    <button class="button is-link">Submit</button>
                </div>
            </div>
        </form>
    </div>

    {{ template "footer.tmpl" . }}
  </body>
</html>