Input range slider HTML style01

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Custom Range Slider | par NGLESSON</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="keyword" content="Custom Range Slider">
    <meta name="author" content="Mezgani said">
    <meta name="copyright" content="NGLESSON">
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet" type="text/css">
    <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
    <link href="style.css"  rel="stylesheet" type="text/css">
</head>
<body class="container">
    <div class="row">
		<form class="col-lg-6 col-12 mt-5">
			<h1>Custom Range Slider</h1>

			<div class="slidecontainer">
			  <p>Default range slider:</p>
			  <input type="range" min="1" max="100" value="50">
			  
			  <p>Custom range slider:</p>
			  <input type="range" min="1" max="100" value="50" class="slider" id="myRange">
			</div>
		</form>
	</div>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
	<script type="text/javascript" src="script.js"></script>
</body>
</html>

@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@300&display=swap');

* {
    margin:0px;
    padding:0px;
    box-sizing: border-box;
    font-family: 'Ubuntu', sans-serif;
} 
.slidecontainer {
    width: 100%;
}
  
.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 25px;
    background: #d3d3d3;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}
  
.slider:hover {
    opacity: 1;
}
  
.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    background: #4CAF50;
    cursor: pointer;
}  
.slider::-moz-range-thumb {
    width: 25px;
    height: 25px;
    background: #4CAF50;
    cursor: pointer;
}