<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Theme Simply Me</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
<style>
.bg-1 {
background-color: #1abc9c;
color: #ffffff;
}
.bg-2 {
background-color: #474e5d;
color: #ffffff;
}
.bg-3 {
background-color: #ffffff;
color: #555555;
}
.bg-4 {
background-color: #2f2f2f;