<div class="navbar-wrapper">
    <div class="container-fluid">
        <nav class="navbar navbar-fixed-top">
            <div class="container">
                <div class="navbar-header">
                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
                    <span class="sr-only">Menü</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                  </button>
                    <a class="navbar-brand" href="//webdoktoru.com.tr" target="blank"> 
<!--- logo -->                      
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-globe" viewBox="0 0 16 16">
  <path d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8zm7.5-6.923c-.67.204-1.335.82-1.887 1.855A7.97 7.97 0 0 0 5.145 4H7.5V1.077zM4.09 4a9.267 9.267 0 0 1 .64-1.539 6.7 6.7 0 0 1 .597-.933A7.025 7.025 0 0 0 2.255 4H4.09zm-.582 3.5c.03-.877.138-1.718.312-2.5H1.674a6.958 6.958 0 0 0-.656 2.5h2.49zM4.847 5a12.5 12.5 0 0 0-.338 2.5H7.5V5H4.847zM8.5 5v2.5h2.99a12.495 12.495 0 0 0-.337-2.5H8.5zM4.51 8.5a12.5 12.5 0 0 0 .337 2.5H7.5V8.5H4.51zm3.99 0V11h2.653c.187-.765.306-1.608.338-2.5H8.5zM5.145 12c.138.386.295.744.468 1.068.552 1.035 1.218 1.65 1.887 1.855V12H5.145zm.182 2.472a6.696 6.696 0 0 1-.597-.933A9.268 9.268 0 0 1 4.09 12H2.255a7.024 7.024 0 0 0 3.072 2.472zM3.82 11a13.652 13.652 0 0 1-.312-2.5h-2.49c.062.89.291 1.733.656 2.5H3.82zm6.853 3.472A7.024 7.024 0 0 0 13.745 12H11.91a9.27 9.27 0 0 1-.64 1.539 6.688 6.688 0 0 1-.597.933zM8.5 12v2.923c.67-.204 1.335-.82 1.887-1.855.173-.324.33-.682.468-1.068H8.5zm3.68-1h2.146c.365-.767.594-1.61.656-2.5h-2.49a13.65 13.65 0 0 1-.312 2.5zm2.802-3.5a6.959 6.959 0 0 0-.656-2.5H12.18c.174.782.282 1.623.312 2.5h2.49zM11.27 2.461c.247.464.462.98.64 1.539h1.835a7.024 7.024 0 0 0-3.072-2.472c.218.284.418.598.597.933zM10.855 4a7.966 7.966 0 0 0-.468-1.068C9.835 1.897 9.17 1.282 8.5 1.077V4h2.355z"/>
</svg>  
<!--- logo -->                                            
</a>
                </div>
                <div id="navbar" class="navbar-collapse collapse">
                   
   <ul class="nav navbar-nav">
     <!--Menu-->
      <li class="active"><a data-scroll href="#giris" > Giriş </a></li>
      <li><a data-scroll href="#nasil" > Nasıl </a></li>
      <li><a data-scroll href="#eklentiler" > Eklentiler </a></li>
      <li><a data-scroll href="#ornekler" > Örnekler </a></li>
      <li><a data-scroll href="#ayrintilar" > Ayrıntılar </a></li>
      <li><a data-scroll href="#digerleri" > Devam edin... </a></li>
     <!--Menu-->
    </ul>
                 
                </div>
            </div>
        </nav>
    </div>
</div>
<!--Sections-->
<section id="giris" class="linktir">Giriş:</section>
<section id="nasil" class="linktir">Nasıl:</section>
<section id="eklentiler" class="linktir">Eklentiler:</section>
<section id="ornekler" class="linktir">Örnekler:</section>
<section id="ayrintilar" class="linktir">Ayrıntılar:</section>
<section id="digerleri" class="linktir">Diğerleri:</section>
<!--Sections-->

body{
    background: #8999A8;
    overflow: hidden;
}
.navbar, .dropdown-menu{
background:rgba(75,25,85,0.85);
border: none;

}

.nav>li>a, .dropdown-menu>li>a:focus, .dropdown-menu>li>a:hover, .dropdown-menu>li>a, .dropdown-menu>li{
  border-bottom: 3px solid transparent;
}
.nav>li>a:focus, .nav>li>a:hover,.nav .open>a, .nav .open>a:focus, .nav .open>a:hover, .dropdown-menu>li>a:focus, .dropdown-menu>li>a:hover{
  border-bottom: 3px solid transparent;
  background: none;
}
.navbar a, .dropdown-menu>li>a, .dropdown-menu>li>a:focus, .dropdown-menu>li>a:hover, .navbar-toggle{
 color: #fff;
}
.dropdown-menu{
      -webkit-box-shadow: none;
    box-shadow:none;
}

.nav li:hover:nth-child(8n+1), .nav li.active:nth-child(8n+1){
  border-bottom: #C4E17F 3px solid;
}
.nav li:hover:nth-child(8n+2), .nav li.active:nth-child(8n+2){
  border-bottom: #F7FDCA 3px solid;
}
.nav li:hover:nth-child(8n+3), .nav li.active:nth-child(8n+3){
  border-bottom: #FECF71 3px solid;
}
.nav li:hover:nth-child(8n+4), .nav li.active:nth-child(8n+4){
  border-bottom: #F0776C 3px solid;
}
.nav li:hover:nth-child(8n+5), .nav li.active:nth-child(8n+5){
  border-bottom: #DB9DBE 3px solid;
}
.nav li:hover:nth-child(8n+6), .nav li.active:nth-child(8n+6){
  border-bottom: #C49CDE 3px solid;
}
.nav li:hover:nth-child(8n+7), .nav li.active:nth-child(8n+7){
  border-bottom: #669AE1 3px solid;
}
.nav li:hover:nth-child(8n+8), .nav li.active:nth-child(8n+8){
  border-bottom: #62C2E4 3px solid;
}

.navbar-toggle .icon-bar{
    color: #fff;
    background: #fff;
}

.linktir{
  box-sizing: border-box;
  width: 100%;
  padding: 80px 60px 60px 60px;
  min-height: 100vh;
  font-size:2em;
  font-weight:700;
}
#giris{
  background-color:#669AE1;
}
#nasil{
  background-color:#C49CDE;
}
#eklentiler{
  background-color:#DB9DBE;
}
#ornekler{
 background-color:#00716C;
}
#ayrintilar{
  background-color:#FECF71;
}
#digerleri{
  background-color:#FEa171;
}
jQuery(document).ready(function($) {
  // Scroll to the desired section on click
  // Make sure to add the `data-scroll` attribute to your `<a>`          tag.
  // Example: 
  // `<a data-scroll href="#my-section">My Section</a>` will scroll to an element with the id of 'my-section'.
  function scrollToSection(event) {
    event.preventDefault();
    var $section = $($(this).attr('href')); 
    $('html, body').animate({
      scrollTop: $section.offset().top
    }, 500);
  }
  $('[data-scroll]').on('click', scrollToSection);
}(jQuery));

//linke tıklandığında active class ekle
//menüyü kapat
//change active status
$(".nav li a").click(function() {
    $(this).parent().addClass('active').siblings().removeClass('active');
    $("#navbar").removeClass("in");    
});

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js