I am unable to change the header background and text color no matter what I do. Kindly help.
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Simplified Movies</title>
<link rel="stylesheet" href="SimplifiedMovies.css">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
</head>
<style>
.navbar{
position: fixed;
top: 0;
width: 100%;
z-index: 100;
color: #520c0c;
font-size: 20px;
padding: 0 20px 0 0;
background: rgb(144, 3, 252);
/* max-width: 1440px; */
height: 100px;
box-shadow: 0 2px 4px 0 rgba(0,0,0,.3)
}
.navbar-nav > li{
padding-left:10px;
padding-right:10px;
}
.navbar-brand{
font-size: 50px;
margin-left: 20px;
}
.form-control{
/* margin-left: 150px; */
}
</style>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">SM</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="container">
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link" href="#">English Movies <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link" href="#">Hindi Movies <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link" href="#"> Telugu Movies <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link" href="#"> Contact Us <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</li>
</ul>
</nav>
<br><br><br><br> <br><br><br><br>
<div class="container">
<div id="demo" class="carousel slide" data-ride="carousel" data-interval="3000">
<ul class="carousel-indicators">
<li data-target="#demo" data-slide-to="0" class="active"></li>
<li data-target="#demo" data-slide-to="1"></li>
<li data-target="#demo" data-slide-to="2"></li>
</ul>
<div class="carousel-inner">
<div class="carousel-item active">
<img src="TeluguMovies.JPG" alt="TeluguMovies" width="1100" height="500">
</div>
<div class="carousel-item">
<img src="HindiMovies.jpg" alt="HindiMovies" width="1100" height="500">
</div>
<div class="carousel-item">
<img src="EnglishMovies.jpg" alt="EnglishMovies" width="1100" height="500">
</div>
</div>
<a class="carousel-control-prev" href="#demo" data-slide="prev">
<span class="carousel-control-prev-icon"></span>
</a>
<a class="carousel-control-next" href="#demo" data-slide="next">
<span class="carousel-control-next-icon"></span>
</a>
</div>
</div>
<br><br><br><br> <br><br><br><br>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
</body>
</html>