Witam, tak jak w temacie przy scrollowaniu elementy diva top najezdzaja na navbar siedze nad tym juz mnostwo czasu, wiec pora chyba spytac kogos madrzejszego....
<nav class="navbar navbar-expand-lg navbar-light bg-light text-uppercase">
<a class="navbar-brand" href="#">
<img class="logo" src="img/logo.png" alt="">
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav text-center ml-auto">
<li class="nav-item d-none d-lg-inline social">
<a class="nav-link" href="#"><i class="demo-icon icon-phone-squared"></i>531-995-541<a>
</li>
<li class="nav-item d-none d-lg-inline social">
<a class="nav-link" href="#"><i class="demo-icon icon-facebook-squared"></i></a>
</li>
<li class="nav-item d-none d-lg-inline social">
<a class="nav-link" href="#"><i class="demo-icon icon-mail-squared"></i></a>
</li>
<li class="nav-item d-none d-lg-inline social mr-lg-5">
<a class="nav-link" href="#"><i class="demo-icon icon-instagram"></i></a>
</li>
<li class="nav-item px-lg-3">
<a class="nav-link" href="#">Kim jestem</a>
</li>
<li class="nav-item px-lg-3">
<a class="nav-link" href="#">Oferta</a>
</li>
<li class="nav-item mr-lg-4 px-lg-3">
<a class="nav-link" href="#">Kontakt</a>
</li>
</ul>
</div>
</nav>
<div class="top">
<div class="container-fluid text-center">
<p class="top-text text-white text-uppercase">lorem ipsum is simply</p>
<p class="top-text2"><i>Lorem ipsum is simply dummy text</i></p>
<button class="btn btn-danger my-3 px-3">Sprawdź ofertę</button>
</div>
<div class="social-sm mr-auto">
<i class="demo-icon icon-phone-squared d-block d-lg-none text-white"></i>
<i class="demo-icon icon-facebook-squared d-block d-lg-none text-white"></i>
<i class="demo-icon icon-mail-squared d-block d-lg-none text-white"></i>
<i class="demo-icon icon-instagram d-block d-lg-none text-white"></i>
</div>
</div>
<div class="container-fluid">
<div class="about">
<div class="row">
<div class="col-lg-8">
<p class="text-uppercase">Kim jesteśmy?</p>
<p class="text-uppercase">dlaczego<span> powinieneś nas wybrać?</span></p>
</div>
<div class="col-lg-4">
<img src="img/about.jpg" class="img-fluid">
</div>
</div>
</div>
</div>
.navbar {
top: 0;
width: 100%;
position:fixed;
display: -ms-flexbox;
display: flex;
-ms-flex-wrap: wrap;
flex-wrap: wrap;
-ms-flex-align: center;
align-items: center;
-ms-flex-pack: justify;
justify-content: space-between;
padding: 0.5rem 1rem;
}
.bg-light{
background: transparent !important;
transition: 800ms ease;
}
.bg-light.scrolled{
background: #6904a2 !important;
}
$(window).scroll(function(){
$('nav').toggleClass('scrolled', $(this).scrollTop() > 300);
});