<nav th:fragment="top" class="navbar navbar-default navbar-fixed-top" style="background-color: black; border-color: black; ">
    <div class="container" style="width:100%; background-color: black;">
        <div class="navbar-header" style="margin-left: 15%;">
            <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="logo-a" href="javascript:;"><img th:src="@{/img/logo.png}" alt="logo"></a>
        </div>
    </div>
</nav>