Boa noite quando clico no botao para nav mobile ele cria um traço em cima da logo como se fosse um traço contando, creio que é a borda de menu porém eu quero tirar como resolver
<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title> Zem </title>
<link rel="icon" href="img/favicon.ico">
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
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<script src="bootstrap/js/bootstrap.min.js"></script>
<!-- Bootstrap -->
<link href="bootstrap/css/bootstrap.min.css" rel="stylesheet">
<link href="css/estilo.css" rel="stylesheet">
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<![endif]-->
</head>
<body >
<header>
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<!-- header -->
<div class="navbar-header">
<!-- botao toggle -->
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#barra-navegacao">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<a href="home.html" class="navbar-brand">
<img id="logo" alt="logo" src="img/zem.svg"/>
</a>
<!-- navbar -->
<div class="collapse navbar-collapse" id="barra-navegacao">
<ul class="nav navbar-nav navbar-right">
<li><a href="corporativo.html"><h4>Corporativo</h4></a></li>
<li><a href="contato.html"><h4>Contato</h4></a></li>
<li><a href="quemsomos.html"><h4>Quem Somos</h4></a></li>
<li><a href="acesse.html"><h4>Acesse</h4></a></li>
</ul>
</div>
</div><!-- /container -->
</nav><!-- /nav -->
</header>
<div class="vd-container">
<video class="img-responsive" src="video/sp.mp4" autoplay loop />
</div>/* -- Barra de navegação -- */
#logo{
height: 140px;
position: absolute;
display: inline-block;
top: -30px;
}
.navbar-brand {
padding: 15px 15px;
height:10px;
}
.navbar-header{
padding: 15px 15px;
height:10px;
}
.yt-container {
position:relative;
padding-bottom:56.25%;
padding-top:0px;
height:0;
overflow:hidden;
}
.yt-container video, .yt-container object, .yt-container embed {
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
}
html, body {
height: 100%;
}
body {
background: white;
background-attachment: fixed;
font-family: Helvetica,Arial,sans-serif;
overflow-x: hidden;
}