<nav class="navbar navbar-expand-lg navbar-light fixed-top py-3" id="mainNav">
    <div class="container px-4 px-lg-5">
        <a class="navbar-brand" href="#page-top">{{ site.title }}</a>
        <button class="navbar-toggler navbar-toggler-right" type="button" data-bs-toggle="collapse" data-bs-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button>
        <div class="collapse navbar-collapse" id="