<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<section id="hero">
<div class="row">
<div class="col-sm-12" id="search">
<form>
<div class="input-group mb-3">
<input type="text" class="form-control search-from" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="basic-addon2">
<div class="input-group-append">
<button class="btn btn-secondary btn-lg text-white" type="button">Search</button>
<button class="btn btn-secondary btn-lg text-white hide-search" type="button"><i class="fa fa-times"></i></button>
</div>
</div>
</form>
</div>
</div>
<nav class="navbar navbar-expand-lg p-0">
<a class="navbar-brand" href="https://sunlimetech.com/" target="_blank"><span class="font-weight-bold h3">Sunlimetech</span></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="https://www.fiverr.com/share/qb8D02">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="https://www.fiverr.com/share/qb8D02">Blog</a>
</li>
<li class="nav-item">
<a class="nav-link" href="https://www.fiverr.com/share/qb8D02">Gallery</a>
</li>