Bootstrap'da sorum var

Merhabalar navbarın (sarı alanın) üstüne ayrı bir div açmak istiyorum.Navbar divinin üstüne yeni bir div açmama rağmen sarı alanın altında kalıyor bunu nasıl önleyebilirim z-index denedim olmadı.

KODLARIM ŞU ŞEKİLDE ;

<section style="position: relative; z-index: 1;"><i class="fa fa-tty"> 0 (23x) xxx xx xx</i></section>

<section>
<div class="container">
<div class="row">
<nav class="navbar navbar-expand-sm fixed-top navbar-light bg-warning">
<button class="navbar-toggler navbar-toggler-right" type="button"
data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon text-black"></span>
</button>
<a class="navbar-brand" href="#"></a>
<div class="collapse navbar-collapse justify-content-end" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link nav-item text-black" href="#">Anasayfa<span class="sr-only">(current)</span></a></li>
<li class="nav-item">
<a class="nav-link nav-item text-black" href="#">Hakkımızda</a></li>
<li class="nav-item">
<a class="nav-link nav-item text-black" href="#">Paketler</a>
</li>
<li class="nav-item">
<a class="nav-link nav-item text-black" href="#">Referanslar</a>
</li>
<li class="nav-item">
<a class="nav-link nav-item text-black" href="#">İletişim</a>
</li>
</ul>
</div>
</nav>
</div>
</div>
</section>

<section id="slider">
<div class="container"></div>
<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="carousel-item active">
<img class="d-block w-100" src="img/a2.jpg" height="700">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="img/a3.jpg" height="700">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="img/telephone.jpg" height="700">
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</section>

resmin z-index değerini 9999 yaparsan hallolur

navbardan fixed-top classını kaldır sorunun çözülür

Hocam resim yok iken yine olmuyordu.
navbardan fixed-top u kaldırmayı denemiştim fakat şöyle görüntü oldu;